Immobilizer System
Contents
1. MIS and PATS Section 4 Electrical gt Electronic Feature Group on the Service Manual CD for Mazda2 PATS Curriculum Training 03 1 Immobilizer System Variants Precautions e To avoid damage to the key do not Drop the key Get the key wet Expose the key to any kind of magnetic field Expose the key to high temperatures on places such as the instrument panel or bonnet under direct sunlight e Asystem malfunction may occur if any of the following items are touching or are near the key head Any metallic object Spare keys or keys for other vehicles equipped with an immobilizer system Any electronic device or any credit or other cards with magnetic strips 2 1007 023 1 Metal ring lying on key head 3 Key is near or touching another immobilizer system key 2 Metal part of another key touching key head 03 2 Curriculum Training Immobilizer System Variants Mazda Immobilizer System from year 2000 onwards Design and Operation The MIS consists of transponder key coil antenna key reminder switch separate immobilizer module PCM and security light The key ID numbers are stored in a non volatile memory of the immobilizer module At each start the module compares the ID number of the transponder key used with those stored in the memory If the verification has been successful the immobilizer module sends a request signal to the PCM to compare the key ID number2. Curriculum Training 03 13 Immobilizer System Variants Additional Troubleshooting Tips e f a malfunction of the MIS cannot easily be identified by inspection of the security light or by a DTC logged in the PCM carry on with troubleshooting as follows First check power supply and ground connection of all immobilizer components If ok insert the transponder key five times and observe the security light The following results are possible 1 The security light is illuminated The key ID number is valid and the malfunction can be caused by the PCM the immobilizer module or the wiring between them 2 The security light flashes constantly The ID number is not registered and should be reprogrammed 3 The security light is not illuminated caused by a malfunction of one or more of the following components Control circuit of the security light Transponder of the key Coil antenna Immobilizer module Wiring beween coil antenna and immobilizer module NOTE This test should be performed with all vehicle keys 03 14 Curriculum Training Immobilizer System Variants Troubleshooting with Oscilloscope e If the procedures described on the preceding pages do not help in identifying the malfunction check the signals of the immobilizer system with an oscilloscope e g WDS and compare them with the signals shown on the pictures below NOTE The background and signal colors of the following oscilloscope images h
3. TRAINING MANUAL Immobilizer System CT L1007 No part of this hardcopy may be reproduced in any form without prior permission of Mazda Motor Europe GmbH The illustrations technical information data and descriptive text in this issue to the best of our knowledge were correct at the time of going to print No liability can be accepted for any inaccuracies or omissions in this publication although every possible care has been taken to make it as complete and accurate as possible TRAINING 2005 SERVICES Mazda Motor Europe GmbH Training Services ome Immobilizer System Table of Contents Introduction saanane ayunan akuna gadane nN 5 anaa 48223 00 1 OVER VLC WY ic ars ane apapa u nganaken aana an gaen aa eag aa nenga aaa ngen agen gae 01 1 Fundamentals NetnrtsceanteenenteleatnesaeatNosnetetenetes 01 1 Immobilizer Systems Used By Mazda 01 2 Mazda Immobilizer System nana he eu 01 2 Passive Anti Theft SySiem Academie auntie Gea 01 3 AA dls kaanan mamayman a ab a aaa ang 01 3 D PATS au ao baa ba aa E gada a a kna akhu d a aaa a 01 4 ComponentS uu anana arana aia a anake nangun aneng Ega aana Ne 02 1 COOVEIVIGW isan gena Maa Ga a Sa E aa aaa a a E aaa aan a a aaa 02 1 Transponder Key u su uy a a a nis Aen nena ag ak 02 2 101 D210 2 a ate aa E a aa ab a a aa E a a aaa an a PORE a
4. Turn ignition switch to start Select Self Test gt Modules gt PCM to retrieve all stored DTCs from the PCM Carry out repair or continue diagnosis for the retrieved DTCs according to the instructions in the W M P1602 Immobilizer unit PCM communication error P1603 Key ID numbers are not registered in PCM P1624 Immobilizer system communication counter 0 Excerpt of five digit DTCs of the MIS 1007_T004 The DTC table and appropriate troubleshooting charts can be found in W M section F gt Fuel and Emission Control Systems and on the CD ESI in section Engine gt On Board Diagnostic Engine Control System DTC P1624 always occurs when the PCM has detected a malfunction more than three times during starting The DTC is automatically deleted when the malfunction has gone If the immobilizer system has an intermittent malfunction inspect the respective wiring pins for tight seat good contact and the wiring for any open or short circuit Refer also to W M section General Information gt Electrical Systems When the engine does not start or starts but stalls afterwards and no DTC is indicated neither by the security light nor the WDS the malfunction is most likely not related to the immobilizer system In this case you will find supporting information in the W M section Engine Symptom Troubleshooting In addition there are further diagnostic possibilities that are described in the next section
5. 1007_T005 Curriculum Training 03 23 Immobilizer System Variants D PATS Mazda2 The ignition switch is turned from the LOCK ACC to the ON START position Security light illuminates 1 The PCM sends data A to the key transponder via the coil 2 The key transponder calculates data B from received data A and sends its specific key ID number and data B to the PCM via the coil 3 The PCM verifies consistency between the UNSATISFACTORY received key ID number and the previously registered key ID RESULT numbers SATISFACTORY RESULT 4 The PCM makes a calculation using received data B and compares it with sent data A UNSATISFACTORY RESULT SATISFACTORY RESULT 5 The PCM requests data for verification from the instrument cluster Therefore it sends data C to the instrument cluster 6 The instrument cluster calculates data D from received data C and sends it to the PCM 7 The PCM makes a calculation using received data D and compares it with sent data C UNSATISFACTORY SATISFACTORY RESULT Engine starting is permitted Engine starting is not permitted The security light goes out after approx 3 s After detecting the error Such as non verification or malfunction the security light illuminates or flashes continuously for approx 1 min and Data A and C are different random values each time then a DTC is displayed repeatedly 10 times 1007_T00
6. Ag ka aa oe 03 45 Diagnostic Trouble Codes 03 46 DTG Vales AS aa a aa gg aa ag al Na A ag a Ra E aa AE E a aa aa a aa A Ta 03 47 List Of Abbreviations Q u 04 1 Curriculum Training Immobilizer System Introduction Introduction e Vehicle insurance companies demanded in the 90 s an effective technical protection against car theft to be developed by the car manufactures A primary requirement of the insurance companies was that the anti theft system should activate itself automatically Therefore the car manufacturers developed the self activating immobilizer system as an electronic anti theft device It prevents an engine start with an ignition key unknown to the immobilizer system This means that the immobilizer function is only deactivated when the ignition is switched on with a registered key and activated automatically when the ignition is switched off e Since 1995 all Mazda passenger vehicles sold in Europe are equipped with an immobilizer system that meets these requirements In the meantime the technical progress has produced more sophisticated systems improving the protection against vehicle theft e The skills needed to diagnose and repair immobilizer system related concerns require fundamental system knowledge because a malfunction can lead to a non starting engine due to reasons which might
7. Curriculum Training 03 25 Immobilizer System Variants PATS Service Functions e While replacing PATS components follow the detailed procedures as described in the respective W M e The customer should bring all keys to the dealer This is important because it may be necessary to program all key ID numbers during the replacement of PATS components e The security access procedure with the WDS is utilized to obtain PATS security access in order to program additional ignition key s to erase ignition keys to enable disable spare key programming or to perform a parameter reset e lfthe engine is started during the key registration procedure the key registration mode will be aborted Therefore do not start the engine until the key registration procedure for all the necessary keys is finished e When you replace the PCM and the IC RKE of the D PATS at the same time follow the W M instruction for Instrument cluster Remote Keyless Entry Mazda3 and RX 8 l PATS Service Functions Table o j em Procedure The key ID number of the key to be added must be registered in the PCM Key ID number registration can be performed according to the following methods e Using two already registered keys Customer Spare Key Programming must be enabled e Using WDS Security access gt Additional Key Programming Registered key ID numbers can be deleted from the PCM using the following methods Key addition e Using two alrea
8. be not directly evident This course is a theoretical and practical guide to gain general and Mazda specific knowledge about the various immobilizer systems their components function and diagnosis e Any person associated with the diagnosis and repair of immobilizer systems used on Mazda vehicles should have the knowledge to deliver a Fix it right first time repair Therefore the Mazda Masters Development and Qualification path provides the following training course required for the service on immobilizer systems Immobilizer System CT L1007 e This training module contains training material about supplemental restraint systems and immobilizer systems as two separate topics They are compiled for consecutive use in one training course but they can just as well be conducted as two separate courses e The ranking of this course within the Mazda Masters educational system is Level 1 Mazda Technician It is focused on mechanics that have already experience in maintaining and repairing Mazda vehicles and have previously attended the courses New To Mazda CT L1001 and Basic Electrics CT L1004 Curriculum Training 00 1 Introduction Immobilizer System e The training manual Immobilizer System is divided into the following main chapters Overview Components Variants NOTE The data tables and procedures represented in this training manual serve only as examples They are taken from the service literat
9. has been replaced the function Parameter reset must be performed It synchronizes the control and the additional module to enable the data transfer between them during the ID number verification process Parameter Reset Procedure e Perform the Parameter reset according to the following procedure as shown in the example for the IC of the Mazda3 e After you have selected Parameter Reset and pressed the tick button the security access is requested again i e a second incode is required PATS Functions Program additional ignition key e Ignition Key Code Erase p Required when anew PCM or PATS module is installed or reprogrammed Customer Spare Key Programming Enable Customer Spare Key Programming Disable Parameter Reset Exit From This Menu 1007_S012 03 38 Curriculum Training Immobilizer System e Follow the instructions of the WDS Parameter Reset WARNING You will need two keys to start the vehicle if you have replaced the PATS IC RKE module Do you wish to continue Parameter Reset This operation has been successful Curriculum Training Variants 1007_S013 1007_S014 03 39 Immobilizer System Variants e The following screen displays all replaceable modules which are involved in the PATS of several vehicle types of Ford and Mazda Select HEC module and press the tick button Ignition key code erase is the next step An Ignition Key Cod
10. l PATS e The I PATS is an integrated immobilizer system i e the software and hardware required to control the PATS are incorporated in the PCM which is connected to the coil antenna and the security light e I PATS is currently installed in the following models Mazda6 GG GY Tribute EP 1007_001 l PATS of Mazda6 GG GY 1 Security light 3 Transponder key 2 Coil antenna 4 PCM Curriculum Training 01 3 Overview Immobilizer System D PATS e The D PATS represents the latest PATS development stage Compared to I PATS the control module requests a code from an additional module via the CAN Controller Area Network bus in order to increase the passive anti theft protection e Currently three different layouts of D PATS are installed in the following models Mazda3 Bk RX 8 SE Mazda2 DY 1007_025 D PATS of Mazda3 BK 1 Security light 5 PCM 2 Instrument cluster 6 LF engine 3 Transponder key 7 Z6 engine 4 Coil antenna 01 4 Curriculum Training Immobilizer System Components Components Overview e The components that are used for the various Mazda immobilizer systems are described on the following pages Transponder key Coil antenna Security light PCM Immobilizer module IC Instrument Cluster HEC Hybrid Electronic Cluster RKE Remote Keyless Entry DDS1 Diesel Diebstahl Schutz and DSM Diesel Smart Modul e Components that require a specific programming procedure a
11. off valve depending on the enable signal from the immobilizer module The DDS1 module is an inherent part of the injection pump and accomplishes a similar function as the PCM within the MIS for gasoline engines 1007_009 1 Coil antenna 3 DDS1 module 2 Immobilizer module Diesel Smart Module e The DSM Diesel Smart Module is installed in the 121 ZQ with the Endura DE engine which is equipped with a mechanical distributor type injection pump The PATS of this model uses a separate immobilizer module just like the MIS The DSM is also an inherent part of the injection pump and controls the fuel shut off valve depending on an enable signal from the immobilizer unit The function and operation of the DSM is the same as per the DDS1 NOTE DDS1 and DSM are not available as spare parts They need to be replaced together with the fuel injection pump In that case contact the Technical Hotline or the Technical Service Department They will decide whether it might be necessary to send in the injection pump or to order a new one Refer to the respective W M to gain more information about the immobilizer system of these models 02 12 Curriculum Training Immobilizer System Variants Variants General Features e The immobilizer systems introduced in the chapter Overview basically operate according to the same principle Although they require different procedures for component replacement and diagnosis they have some features in
12. or RKE The key ID numbers of all keys being used must be re registered Two keys replacement must be registered at least to enable engine start lt Using WDS Security access gt Parameter Reset and Ignition Key Code Erase must be performed lt All keys should be available 1007_T010 03 28 Curriculum Training Immobilizer System Variants Key Programming without WDS e Onall PATS additional keys can be programmed with two or more valid keys according to the following procedure 1 Insert the first valid key in the ignition switch and turn it to the ON position for 3 s 2 Insert the second valid key within 5 s in the ignition switch and turn it to the ON position for 3 s 3 Insert the new key in the ignition switch within 20 s and turn it to the ON position for 3s 4 Program all further keys according to step 3 Then start the vehicle with all keys to check for correct function 5 After successful key programming clear DTCs stored in the PCM NOTE The PATS function Customer spare key programming must be enabled for this procedure to operate NOTE This programming procedure is content of the owner s manual of the Mazda Tribute EP and can be performed by the vehicle owner 6 9 12 18 18 21 24 27 30 33 36 39 42 2 I I 3 6 9 12 15 18 21 24 27 30 33 36 39 42 1007_021 1 Ignition ON OFF 5 Programming mode switched on 2 Security light flashing code 6 Programming 3 First valid k
13. the PCM as additional component to verify the validation code 1007 _019c D PATS componenis RX 8 1 Transponder key 5 RKE module 2 Coil antenna 6 HS Can bus 3 Instrument cluster 7 PCM 4 Security light 1007_020b D PATS circuit diagram RX 8 1 Coil antenna 7 HS CAN bus 2 Tx line 8 PCM 3 Rx line 9 Starter relay 4 RKE 10 Starter motor 5 Instrument cluster 11 Ignition coil 6 Security light 12 Fuel injector 03 22 Curriculum Training Immobilizer System Variants Key ID Number Verification Process e The following flowcharts show the verification process of the ID number on the various PATS IPATS The ignition switch is turned from LOCK ACC to ON START position Security light illuminates 1 The PCM sends data A to the key transponder via the coil 2 The key transponder calculates data B from received data A and sends its specific key ID number and data B to the PCM via the coil 3 The PCM verifies calculation of data B and consistency UNSATISFACTORY between the received key ID number and the previously RESULT registered key ID numbers SATISFACTORY RESULT Engine starting is permitted The security light goes out after approx 3 s Engine starting is not permitted After detecting an error the security light illuminates or flashes continuously for approx 1 min and then a DTC is Data A and B are different random values each time displayed repeatedly 10 times
14. to and from the immobilizer control module via the coil antenna transceiver A capacitor that powers the transponder electronic and is charged by inductive coupling through the coil antenna transceiver 02 2 Curriculum Training Immobilizer System Components 1007_026 Inductive coupling of transponder and coil antenna 1 Transponder with integral IC 3 Transceiver 2 Transmission distance HF NOTE Each transponder key must be registered to the system using a specific programming procedure Key programming procedures are described in the chapter Immobilizer Systems and in the respective W M NOTE The type of transponder key varies depending on the installed immobilizer system In case a new transponder key is needed order the matching type by means of the VIN Vehicle Identification Number and the EPC Electronic Parts Catalogue Use only the correct type of transponder key approved by Mazda Otherwise key programming is impossible Curriculum Training 02 3 Components Immobilizer System Coil Antenna e The coil antenna powers the transponder by inductive coupling and transmits receives the data signals between control module and transponder key by radio frequencies It is sometimes also designated as coil antenna transceiver e The coil antenna consists of a copper coil wound up in a ring case and an integrated circuit to create a high frequency alternating voltage for the inductive coupling e It is inst
15. transfer between them A present malfunction is displayed by the security light and or is stored in the PCM as DTC e DTCs for the immobilizer system are cleared when the ignition switch is turned from the ON to the LOCK or ACC position NOTE Always start troubleshooting with the inspection of both the security light and the DTC memory of the PCM with WDS Some DTCs are only indicated by the security light while other DTCs are only displayed by the WDS Moreover it is possible that the security light may not properly display a DTC if it has a malfunction itself Therefore use WDS for the troubleshooting on MIS in any case Security Light e The security light of the MIS is controlled by the immobilizer module as follows The activation of the immobilizer system is not displayed by the security light The immobilizer function is de activated when the security light turns off approximately 2 seconds after the engine start If the immobilizer function is not de activated malfunction detected by the OBD function the security light flashes a DTC within two minutes Curriculum Training gt OR Immobilizer System Variants DTCs Displayed by the Security Light e The security light displays present malfunctions by flashing a corresponding two digit code The available DTCs indicate malfunctions of the ID number verification between transponder key and immobilizer module and malfunctions of the communication between PCM and immob
16. two keys have been newly registered see note below the PCM permits the programming of more than 8 keys according to the procedure Key Programming without WDS To disable this feature select the option Unlimited key mode OFF Then the PCM prohibits the programming of more than 8 keys NOTE The unlimited key mode function should not be used unintentionally because it locks all registered keys and the engine start is disabled Once this function has been used two keys at minimum must be newly registered via the function Ignition key code erase which requires to repeat the security access procedure Curriculum Training 03 43 Immobilizer System Variants Diagnosis On Board Diagnostic System The On Board Diagnostic OBD system of PATS is incorporated in the PATS control module It comprises a malfunction detection function and diagnosis function that start operating automatically when the ignition switch is turned to the ON position The OBD system monitors the function of the different components and the signal transfer between them A detected malfunction is indicated as appropriate DTC There are two methods of DTC verification By the security light that outputs a DTC asa corresponding flashing pattern and by reading out the DTC memory of the relevant modules using the WDS Detected DTCs of the PATS are cleared when the ignition switch is turned from the ON to the OFF ACC position Consequently malfunctions a
17. with the numbers registered in the PCM Each immobilizer module has its unique code word that is stored in the PCM during its installation After the verification of the ID number the immobilizer module requests the code word from the PCM The immobilizer module controls the starter circuit and the security light It enables the PCM to activate fuel injection and ignition when the ID number and code word verification have been successful The signals between immobilizer module and PCM are transmitted via a bi directional line 1007_011 MIS components 1 2 3 4 Transponder key 5 Security light Coil antenna 6 Immobilizer module Instrument cluster 7 PCM B The arrows in the picture above indicate the signal flow during the ID number verification Curriculum Training 03 3 Variants Immobilizer System 0 1109 6024 7150 8 q f 1 x 877 LEA g 87 1 078 1 JAH y a 3 G 11N 93Z11IB0ONRBI 10Z f 160 LNVOVA 09 01 38 d9 42W c V 160 x i 1 1 60 NOI1938 81 Z80 NOIL9JS O INJIWNAYLSNH HOLIMS XJONINIY AJA 1 4 Y31807 LINA 83Z111IB0MWNM 0 1 aor 0 ava 0 f YO 3NIDN3 60 f Q 96 21 0 10 N011235 Nod 02 amp z0 f YS NODb N 8 0 a H 0 B M saajat 4 BAN 70 9 d usa yOu NIYA 078 027180 6110 N01133S AV138 Yslevis OS O YOS JAN Ji A8311y8 WALSAS
18. 5 below 5 Confirm all of the programmed keys by using each of them to start the engine Verify the engine continues to run for at least 5 seconds The security indicator will illuminate immediately after the ignition is turned to ON with key 1 and it will be turned off immediately after turning the ignition to OFF The security indicator will illuminate immediately after the ignition is turned to ON with key 2 and will then go off after 3 seconds g After two key codes are programmed into the vehicle proceed to Step 4 if there is a need to program more keys If there is no need to program more than 2 keys proceed to Step 5 1007_S019 NOTE It is not relevant for the subsequent key programming whether WDS is still 03 42 connected to the DLC or not Curriculum Training Immobilizer System Variants Unlimited Key Mode The unlimited key mode function is available for Mazda2 DY Mazda6 GG GY It permits programming of more than 8 keys for fleet or hire vehicles To enable this function select the option Program unlimited key code from the PATS functions menu After you have pressed the tick button the WDS displays a keyboard to enter a key code You can input any value except for OO 00 00 00 1007_S020 If you press the tick button again the WDS programs the key code into the PCM Then select the option Unlimited key mode ON from the PATS functions menu After
19. 6 Key Programming without Code Word 03 7 Key Programming with Code Word 03 8 Code Word Input Procedure a 03 9 Code Word Request s uuu uuu uay aaa aaa a aa 03 10 DIAGNOSIS ss AE u Nasua ayaq wui w dena na ET 03 11 On Board Diagnostic System 03 11 SECURITY LIGA akasa a Satan a A E baa a ahus AeA La 03 11 DTCs Displayed by the Security Light 03 12 DTCs Displayed by WDS 03 13 Additional Troubleshooting Tips 03 14 Troubleshooting with Oscilloscope Signals 03 15 Transponder Signal 03 15 Communication Signal between Immobilizer Module and PCM 03 17 Curriculum Training Table of Contents Immobilizer System PAS wars nc a at aaa aa a ae ag saa aaa a EN aa EE Nana Sa ES NE E a GDG a a a 03 18 Design and Operation naen anana anana anane eaaa 03 18 integrated PAT Sis u ak iga aa aaa an a aa ga aaa Ta a ang recat ga aan aaa 03 18 Disiributed PATS suyuta E E SN NG Ta a a ag tats EA 03 20 Key ID Number Ver
20. 7 03 24 Curriculum Training Immobilizer System Variants D PATS Mazda3 and RX 8 The ignition switch is turned from the LOCK ACC to the ON START position Security light illuminates 1 The IC Mazda3 RKE RX 8 sends data A to the key transponder via the coil 2 The key transponder calculates data B from received data A and sends its specific key ID number and data B to the IC RKE via the coil 3 The IC RKE verifies consistency between the received UNSATISFACTORY key ID number and the previously registered key ID RESULT numbers SATISFACTORY RESULT 4 The IC RKE makes a calculation using received data B and compares it with sent data A UNSATISFACTORY RESULT SATISFACTORY RESULT 5 The IC RKE requests data for verification from the PCM 6 The PCM sends data C to the IC RKE 7 The IC RKE calculates data D from received data C and sends it to the PCM 8 The PCM makes a calculation using received data D and compares it with sent data C RESULT SATISFACTORY RESULT Engine starting is permitted Engine starting is not permitted The security light goes out after approx 3 s After detecting the error such as non verification or malfunction the security light illuminates or flashes continuously for approx 1 min and then a DTC is displayed repeatedly 10 times Data A and C are different random values each time 1007_T006
21. CAN bus All of the code requests must be completed successfully before the control module will send an enable signal for the engine start to the PCM The D PATS consists of transponder key coil antenna IC or RKE PCM and security light The key contains a crypto transponder with automatically changing code Currently Mazda uses three variants of D PATS The D PATS of the Mazda2 DY uses the PCM to control the immobilizer functions and the IC as additional component to verify the validation code 1007_019b D PATS components Mazda2 1 2 3 Transponder key 4 HS Can bus Coil antenna 5 Instrument cluster HEC PCM 6 Security light 03 20 Curriculum Training Immobilizer System Variants The D PATS of the Mazda3 Bk uses the IC to control the immobilizer functions and the PCM as additional component to verify the validation code 1007 _019a D PATS components Mazda3 1 Transponder key 4 Security light 2 Coil antenna 5 HS Can bus 3 Instrument cluster 6 PCM 1007_020 D PATS circuit diagram Mazda3 1 Coil antenna 7 HS CAN bus 2 Tx line 8 PCM 3 Rx line 9 Fuel injector 4 Instrument cluster 10 Fuel pump relay 5 Security light 11 Ignition coil 6 Microprocessor 12 Starter relay NOTE On the Mazda2 and the Mazda3 the IC is sometimes also termed as HEC Curriculum Training 03 21 Immobilizer System Variants The D PATS of the RX 8 SE uses the RKE module to control the immobilizer functions and
22. E 02 4 MIS CUMIE YS LIGIN asana sagagang eeu Ta Ta a TANG NG NA NO Sua D Aa A TA aaa NA a wey 02 5 Powertrain Control Module 02 6 Immobilizer Module anana aa aaa nana ae eaaa nane 02 7 Immobilizer Module Variants 02 8 Instrument CSE ii saa an a a aa aa aa eed tute Ka aa a Na a aa aaa aan aa ajaa 02 9 Immobilizer Function of the IC 02 10 Remote Keyless Entry Module 02 11 DDBST Modules a L aaa aaa aaa uu aaa ba Su a akas 02 12 Diesel Smart Module anana nana aana nana naen ene 02 12 VarianfS E baga aaa a aba ga Ac asas 03 1 General Feat reS nis a aaa da a an ayia en u D ere daa ka gag aa 03 1 PVC AUTO ENS saa sun ne cts rede oo Cade ees doce u ayka k Ban ea i tab ua gan ua 03 2 Mazda Immobilizer System from year 2000 onwards 03 3 Design and Operation cceeeeeeeeeececeee eee eeeeeeeeeaeeeeeeeeeeeeeeseaaeeeeeeeeeeeeeeeea 03 3 Key ID Number Verification Process 03 5 MIS Service Functions eel ae eee ee eee A oe eae ek 03 6 MIS Service Function Table 03
23. O 03 30 Curriculum Training Immobilizer System Variants PATS Functions with WDS Security Access e The security access is a special access mode via WDS for conducting certain PATS service functions The coded security access is designated to prevent any misuse The following PATS functions are protected Programming additional keys Deleting all the keys and registering new keys Changing preset parameters for adding new keys using two registered keys Parameter reset Enabling disabling the limitation in the number of programmable keys e To get access to the protected PATS function menu select Toolbox gt Body gt Security gt PATS Functions If you press the tick button the WDS will display the following information about PATS Control Function Location Maximum Number of Keys Minimum Keys Required after Ignition Key Erase Requires parameter reset after installation of a new PCM or PATS Module Key Graphic 1007_S006 Start screen for I PATS functions Mazda6 Curriculum Training 03 31 Immobilizer System Variants e After you have pressed the tick button again WDS asks you to retrieve a security outcode from the PATS control module Gaining Security Access Coded Access requires retrieving a security outcode from the PATS module and exchanging the security outcode for a security incode The incode will then be entered into WDS and Security Access is then given Do yo
24. Variants PATS Functions Menu e After the WDS has granted security access the following screen appears displaying the PATS functions menu here for the I PATS of the Mazda6 PATS Functions Helpscreen Program additional ignition key Ignition Key Code Erase Customer Spare Key Programming Enable Select item for more information Customer Spare Key Programming Disable unlimited key mode OFF unlimited key mode ON program unlimited key code EXIT 1007_S010 NOTE When the security access is granted do not turn off WDS do not disconnect the data link connector DLC do not start the engine or turn the ignition switch to the OFF position and leave for more than 10 seconds as this will exit the security access mode Curriculum Training 03 35 Immobilizer System Variants e The PATS functions menu of the D PATS looks slightly different The items Unlimited Key Mode ON Unlimited Key Mode OFF and Program Unlimited Key Code have been removed not for Mazda2 and the item Parameter Reset has been added PATS Functions Helpscreen Program additional ignition key Ignition Key Code Erase Customer Spare Key Programming Select item for more information Enable Customer Spare Key Programming Disable Parameter Reset Exit From This Menu 1007_S011 03 36 Curriculum Training Immobilizer System Variants Items of the PATS Functions Menu Program ad
25. Y3ZNISOWNI 1007_012 o S S gG x 32 5 O 2 5 O l gt a o 6 s D S xe 2 roe Immobilizer System Variants Key ID Number Verification Process e The flowchart shows the ID number verification process of the current MIS MPV LW Key is inserted in the ignition lock and key reminder switch initiates verification process 1 Immobilizer module sends a request signal and a random number to transponder via coil antenna 2 Transponder sends its specific key ID number and a calculated answer for random number to immobilizer module via coil antenna 3 Immobilizer module verifies consistency between received key ID number and previously registered key ID numbers and checks calculated answer for random number UNSATISFACTORY SATISFACTORY RESULT RESULT 4 Ignition switch is turned from LOCK ACC to ON START position security light illuminates and ID number is checked against ID number held in PCM UNSATISFACTORY SATISFACTORY RESULT RESULT 5 Immobilizer module requests code word held in PCM 6 Immobilizer module verifies whether returned code word from PCM is the same as the one held in immobilizer module UNSATISFACTORY SATISFACTORY RESULT RESULT 7 Immobilizer module activates starter and sends enable signal to PCM 8 Engine starting is permitted Engine starting is not permitted The s
26. alled around the entry to the mechanical lock cylinder and connected to the control module of the immobilizer system e The transceive operation starts when the ignition key is switched to the ON position On the MIS from year 2000 onwards the transceive operation already starts when the key has been inserted in the keyhole i e the process is initialized by the key reminder switch 1007 027 Coil antenna 1 Coil 3 Connector 2 Transceiver electronics NOTE The coil antenna is a purely transmitting component It does not need to be programmed to the immobilizer system in case of replacement 02 4 Curriculum Training Immobilizer System Components Security Light e The security light is used to indicate system activation only on PATS as well as malfunctions e The system activation is displayed by a constant flashing light while malfunctions are indicated by specific flashing patterns or constant illumination e The current Mazda vehicles with immobilizer system have the security light located in the IC e The security light is powered by the IC and controlled by the respective immobilizer control module on the ground side e Onthe MIS the code word is entered with the aid of the security light 1007_010 1 Security light 2 IC NOTE Refer to the section Immobilizer Systems and the respective W M for more information about flashing patterns of the security light NOTE Depending on the vehicle specification the se
27. ansponder key coil antenna PCM and security light The key contains a crypto transponder with automatically changing code e The key ID numbers are stored in a non volatile memory of the PCM At each start the module compares the ID number of the key used with those it has stored e The PCM activates starter ignition and fuel injection if the verification of the ID number has been successful 1007_019d I PATS components 1 Key transponder 4 Security light 2 Coil antenna 5 PCM 3 Instrument cluster NOTE The I PATS of the Tribute is equipped with an Anti scan function After the use of an invalid key the next starting attempt with a valid key is prevented for 20 s 03 18 Curriculum Training Immobilizer System Variants IGNITION SWITCH LON 5 Fs g u z w SECTION B 1 2c BM IG KEY1 40A _x 01 IMMOBILIZER SYSTEM 1007_018 Wiring diagram of I PATS coil antenna Mazda6 GG Curriculum Training 03 19 Immobilizer System Variants Distributed PATS The PATS functionality is incorporated in the control module and has been distributed to 2 components to increase anti theft protection As a result an additional component which cannot be removed easily is required to enable engine start After completion of the usual PATS communication between transponder coil antenna and PCM the control module also requests a code from the additional module via the HS
28. ave been inverted to increase the clearness of the graph Transponder Signal e Good signal of a valid key measured at terminal F of the immobilizer module Channel 1 a qA Auto None EI Manual ak Sense Red Probe mn Scale 1 Wd Gap Coupling DC Op Filter 1kHz Gap Invert Off WI Display On Hp Channel 2 Wp Channel 3 a Channel 4 Th Time Base Trigger Channel 1 Rising 0 05 110 4ms 4 gt 1007_S001 1 Signal start 2 Valid transponder signal NOTE The signal was recorded with the oscilloscope settings that are visible on the screenshot The signal will only be displayed as shown above when the noise filter is set to 1 kHz Curriculum Training 03 15 Immobilizer System Variants e Signal of an invalid key measured at terminal F of the immobilizer module Trigger Channel 1 Rising 0 05V 110 Ars NI 1007_S003 1 Signal start 2 No transponder signal 03 16 Curriculum Training Immobilizer System Variants Communication Signal between Immobilizer Module and PCM e Good signal measured at terminal A of the immobilizer module during the key ID number verification process 1007_S005 Curriculum Training 03 17 Immobilizer System Variants PATS Design and Operation Integrated PATS e The system consists of tr
29. cles Curriculum Training 03 9 Immobilizer System Variants NOTE If a wrong number of the code word is entered the security light goes out at the end of the procedure If the input procedure has been incorrect the security light turns off at once In both cases remove and insert the key five times as decribed before and repeat the code word input procedure Code Word Request e Most programming procedures of the immobilizer system require entering the code word as previously described The code word is available at your Technical Hotline Service Department e To obtain the code word the Mazda dealer must fill in a prepared request form and fax it to his NSC ID Amongst other data the request form must contain the serial number of the immobilizer module and the VIN e The serial number consists of a 10 digit number and is located above the barcode on the immobilizer module label See arrow in the picture below pa 2088870 ALS tn T 2 MIT SUNAN ELECTRIC CONAP JAPAN 1007 016 Serial number of a Mitsubishi immobilizer module 03 10 Curriculum Training Immobilizer System Variants Diagnosis On Board Diagnostic System e The On Board Diagnostic OBD function of the MIS comprises a malfunction detection function and diagnosis function that start operating automatically when the ignition switch is turned to the ON position e The OBD system monitors the function of the different components and the signal
30. common NOTE NOTE NOTE All immobilizer systems require at least two registered keys for system operation and can register a maximum of eight keys An exemption is the PATS installed in the first 121 ZQ until 1998 which requires three keys at minimum and can register a maximum of 16 keys Each system allows programming of additional keys when two registered keys are available for PATS the function Customer Spare Key Programming must be enabled In case an ignition key is lost or stolen the customer should contact a Mazda dealer or authorized repairer to have the key deleted Before you begin the diagnosis or repair of the immobilizer system always check whether any service information has been published concerning the malfunction To avoid problems during the replacement of immobilizer components it is important to order the required spare parts according to the VIN and the serial number of the immobilizer module e Additional information about the current immobilizer systems can be found in the following sections of the respective W M Section T and F in the W M with former layout Information about immobilizer systems installed on models before 1997 can be found in W M 1503 10 95 Section Body amp Accessories gt Security and Locks Body amp Accessories gt On Board Diagnostic Immobilizer System and section Engine gt On Board Diagnostic Engine Control System in the W M on the CD ESI
31. curity light also indicates the activation of the double lock function of the power door lock and or of the theft deterrent system However these systems are not linked to any immobilizer function Curriculum Training 02 5 Components Immobilizer System Powertrain Control Module e The PCM is generally involved in the immobilizer systems used on Mazda vehicles On petrol engines it controls the activation of fuel injection ignition and starter for the engine start according to an inhibit or enable signal from the immobilizer system The PCM of the current diesel engines activates starter injectors and depending on the installed system other injection components as e g the fuel metering valve e The PCM can have different functions within the immobilizer system The immobilizer control function is integrated in the PCM which is directly connected to the coil antenna transceiver The immobilizer control function is integrated in a separate immobilizer module while the PCM operates as additional verification component for the D number and the code word The immobilizer control function is integrated in the IC or RKE module while the PCM operates as additional verification component to increase anti theft protection The immobilizer control function of the Mazda2 is integrated in the PCM while the IC operates as additional verification component 1007 008 PCM of Mazda2 02 6 Curriculum Training Immobili
32. de encryption of the ID number transfer between transponder and immobilizer module has been adopted for all MIS The third MIS generation uses a Lucas or Mitsubishi module since model year 2000 its operation is as per the second generation but in addition it generally prevents starter operation when using an unregistered key or when a system malfunction has been detected Moreover the verification process already starts when the ignition key is inserted Curriculum Training Immobilizer System Instrument Cluster Components e To increase anti theft protection the PATS of the Mazda2 DY and the Mazda3 Bk comprise the IC as additional component e The IC of Mazda2 is connected to the PCM and DLC Data Link Connector while the IC of the Mazda3 is connected to the PCM DLC and coil antenna in I l ooo0000o0 4 PATS of Mazda2 DY IC PCM Coil antenna DLC Transponder key OQ Q N Curriculum Training cO ONO 1007_005a Security light Starter Fuel injectors Ignition coil 02 9 Components Immobilizer System Immobilizer Function of the IC e The ICs of Mazda2 DY and Mazda3 BK have the following differences Onthe Mazda2 the PCM controls the immobilizer function and starts initializing the verification process of the ID number In addition the ID number and a specific code are exchanged
33. ditional ignition key Programs one or more additional ignition key s without erasing registered keys The procedure does not require the use of a registered key Ignition Key Code Erase Deletes all registered key ID numbers Requires to register 2 keys before the engine will start Customer Spare Key Programming Enable Permits the use of additional key programming without WDS using two registered keys Customer Spare Key Programming Disable Prohibits the use of additional key programming without WDS using two registered keys This is useful for fleed or hired vehicles Parameter Reset Must be performed on vehicle with D PATS when the PCM IC or RKE have been replaced Requires a second security access procedure Unlimited key mode ON Disables the limitation to 8 programmable keys Unlimited key mode OFF Enables the limitation to 8 programmable keys Program unlimited key code Initializes access to the unlimited key mode functions NOTE When you have selected the desired option follow the instructions of the WDS NOTE After selecting a function from the menu except for Program additional ignition key and Customer Spare Key Programming Enable Disable or after the menu is quitted the security access procedure must be repeated again to choose additional options Curriculum Training 03 37 Immobilizer System Variants Parameter Reset e After the D PATS control module
34. dy registered keys Customer Spare Key Programming Key deletion must be enabled All key ID numbers are cleared except those of the two replacement keys used e Using WDS Security Access gt Ignition Key Code Erase All key ID numbers are cleared Two keys have to be registered to start the engine Key ID numbers for all keys that were being used must be registered in the new PCM PCM replacement New PCM Two keys have to be registered to start the engine e Used PCM Using WDS Security Access gt Ignition Key Code Erase Two keys have to be registered to start the engine 1007_T008 03 26 Curriculum Training Immobilizer System Variants D PATS Service Functions Table Mazda2 tem _ j _ Procedure _ The key ID number of the key to be added must be registered in the PCM Key ID number registration can be performed according to the following methods Key addition e Using two already registered keys Customer Spare Key Programming must be enabled e Using WDS Security access gt Additional Key Programming Registered key ID numbers can be deleted from the PCM using the following methods e Using two already registered keys Customer Spare Key Programming must Key deletion be enabled All key ID numbers are cleared except those of the two keys used replacement e Using WDS Security Access gt Ignition Key Code Erase All key ID numbers are cleared Two keys have to be registered to s
35. e Erase is necessary 1007_S015 NOTE When the IC has been replaced on Mazda2 and Mazda3 the menu item HEC must be selected The items PATS IC and VIC in this menu are without function Ignition Key Code Erase WARNING You will need 2 keys to start the vehicle Do you wish to continue 1007_S016 03 40 Curriculum Training Immobilizer System Variants e Press the tick button IGN KEY ERASE Operation in progress This operation has been successful 1007_S017 e _Inthis screen it is confirmed that all key ID numbers have been deleted Afterwards two keys must be programmed Press the tick button Ignition Key Code Erase All known keys have been erased You must now program a minimum of two keys 1007_S018 Curriculum Training 03 41 Immobilizer System Variants e The final screen gives instructions for the required key programming The procedure is identical to the procedure Key programming without WDS as described above Key programming procedure The engine will not start until you complete the following steps 1 Turn the ignition to OFF 2 Turn the ignition to ON with key 1 then turn the ignition to OFF after 3 seconds 3 Turn the ignition to ON with key 2 After confirming that the indicator is no longer illuminated turn the ignition to OFF 4 Using the new key repeat step 3 above After you finish programming the necessary number of keys proceed to step
36. e lowest number of those detected will be displayed by the security light Curriculum Training 03 45 Immobilizer System Variants Diagnostic Trouble Codes e On I PATS the PCM detects a malfunction of the immobilizer system and stores a corresponding DTC They are displayed as five digit DTCs by the WDS and as two digit codes by the security light e PATS malfunctions of the Mazda2 are stored in the PCM and in the IC They can be retrieved as five digit DTCs from the PCM using WDS Present malfunctions are additionally displayed for a certain time as two digit codes by the security light The DTCs stored in the IC relate to communication failure between IC and PCM e PATS malfunctions of the Mazda3 RX 8 are also stored as five digit DTCs in the IC RKE and the PCM When the PCM has disabled the engine start according to a malfunction detected by the IC RKE the corresponding DTC can be retrieved from the IC RKE In this case DTC P1260 Theft detected Vehicle immobilized is always logged in the PCM Select Option Powertrain Control Module gt All CMDTCs Pass ABS Pass GEM THEFT Detected Vehicle Immobilized Pass RCM B1601 FF IC P1260 FF PCM Freeze Frame Data Status No Status Available for this DTC P1260 PCM P P P P P P P P P1260 PCM Pending Optional equipment Modules Fail EATC Cleared CMDTCs 1007_S021 NOTE Refer to the W M for further information 03 46 Curric
37. ecurity light goes out after approx 3 s After detecting the error such as non verification or malfunction the security light illuminates or flashes continuously for approx 1 min and then a DTC is repeatedly displayed 10 times 1007_T001 Curriculum Training 03 5 Immobilizer System Variants MIS Service Functions e When you replace MIS components key immobilizer module PCM follow the detailed procedures as indicated in the respective W M e The customer should bring all keys to the dealer if components are replaced This is necessary because each previously registered key is deleted when it is not used during the key programming procedure e If the immobilizer module or the PCM is replaced there must be at least one valid key Otherwise the immobilizer module and the PCM must be replaced e Neither the immobilizer module nor the PCM can be changed from one vehicle to another If the immobilizer module or the PCM is replaced by one from another vehicle the engine will not start It is not possible to re use an immobilizer module or a PCM that has already been programmed to another vehicle e Consequently the immobilizer module and or the PCM should not be replaced on trial during troubleshooting If this is done the ID number and the code word will be programmed into the new module so it becomes unusable for other vehicles even if you find that the old one has no malfunction e The exchange of the immobilizer
38. ey 7 Time in seconds 4 Second valid key Curriculum Training 03 29 Immobilizer System Variants Key Deletion without WDS e This procedure is available for PATS and for the D PATS of the Mazda2 DY It is helpful when a key has been lost or the number of valid keys is unknown for example in the case of a used car The procedure deletes all the keys except for the two valid keys that are used 1 Insert the first valid key in the ignition switch and turn it to the ON position for 3 s 2 Insert the second valid key within 5 s in the ignition switch and turn it to the ON position for 3 s 3 Turn the second valid key to the OFF position and turn it within 10 s back to the ON position for 3 s 4 Insert the first valid key within 10 s in the ignition switch and turn it to the ON position for 10 s The security light flashes for 5 s to confirm the deleting procedure 5 After successful key programming clear DTCs stored in the PCM NOTE The PATS function Customer spare key programming must be enabled for this procedure to operate NOTE If the valid key is turned to the OFF position while the PATS LED is flashing for 5 s the deleting procedure is aborted 000 10 15 20 25 30 35 40 45 50 55 60 7 5 10 15 20 25 30 35 40 45 50 55 60 1007_021 Ignition ON OFF Security light flashing code First valid key Second valid key Programming mode switched on PATS memory deleted Time in seconds Q N N
39. ft System IPATS Integrated PATS D PATS Distributed PATS PCM Powertrain Control Module PID Parameter IDentification Curriculum Training 04 1
40. fter replacement NOTE Transponder key Immobilizer module IC HEC RKE PCM DDS1 and DSM Always follow carefully the instructions of the W M Workshop Manual and WDS regarding the respective programming procedure before you start replacing immobilizer components Just replacing components will lead to a non start concern that may provoke complications that cannot be solved easily Curriculum Training 02 1 Components Immobilizer System Transponder Key e Transponders artificial word made up of TRANSmitter resPONDER belong to the group of electronic devices that operate according to the RF ID Radio Frequency IDentification technology Thereby the system consisting of transponder and reading unit enables a contactless detection and allocation of objects The transponder is powered by inductive coupling so that no batteries are necessary 1007_002 1 Transponder e The transponder key has the transponder electronic integrated in its plastic handle where it is encapsulated in a glass or plastic body It consists of A microchip that contains the unique key ID number Due to an encrypted request signal from the immobilizer control module the chip calculates a matching code for the ID number before it is transferred To prevent an unauthorized scanning of the ID number the code changes with each transfer and uses several million different coding possibilities A coil which transfers and receives all data signals
41. ification Process 03 23 EPATS nada uu a a aab aab aba a ai nai aa da a a Ad a a a ada a 03 23 DEPATS saa aa hA a ga a aaa a A aa a ras tani esi abc 03 24 PATS Service Functions 03 26 I PATS Service Functions Table 03 26 D PATS Service Functions Table 03 27 Key Programming without WDS 03 29 Key Deletion without WDS 03 30 PATS Functions with WDS 03 31 SOC rIy ACOesSSu u A R A u a u e uu a Mu Ae ck Maa 03 31 PATSF cetions Meli sasana usu yu uuu su TAn Ta GE SEG a a rang a cual 03 35 Items of the PATS Function Menu a a aaa 03 37 Parameter Reset mu anu uapa aba aba ab ta aab ab aaa ta bia bau baa baa 03 38 Parameter Reset Procedure naneneneneanenenaanenen aa nene anane n anane 03 38 Unlimited Key Mode anana aaa aaa aaa aaa eaaa eaaa eee 03 43 DIagno0SIS sasiwi aana Se aaa e Genea awa ngae wa wa saa E T 03 44 On Board Diagnostic System 03 44 Sec rity ENG basan a ana A aoe sons Aa E
42. ilizer module e To display a DTC by the security light follow the procedure below 1 Turn the ignition switch to START position for 2 seconds then back to ON position 2 Wait for 2 minutes 3 Verify the security light condition and if a DTC is indicated go to the respective troubleshooting chart Output pattern ID number unregistered in immobilizer unit is input after ignition switch is turned to ON position or engine cranking See T 87 DTC 01 ID number format error voltage range See T 87 frequency DTC 02 ID number is not input into immobilizer unit after ignition switch is turned to ON position See T 87 or cranking engine DTC 03 Coil or wiring harness between immobilizer unit and coil is open circuit See T 88 DTC 11 1007_T003 Excerpt of DTC Table from MPV LW 2003 NOTE The DTC table and troubleshooting charts for these DTCs can be found in W M section T gt Immobilizer System and on the CD ESI in section Body amp Accessories gt On Board Diagnostic Immobilizer System 03 12 Curriculum Training Immobilizer System Variants DTCs Displayed by WDS e The PCM detects malfunctions related to the D number code word verification or to the communication between immobilizer module and PCM A malfunction can be retrieved by WDS as five digit DTC e To display DTCs with WDS follow the procedure below 1 2 3 4 NOTE NOTE NOTE NOTE Connect WDS to the DLC
43. luminates for 1 to 2 seconds When the security light has gone out turn the key to the LOCK position and remove it from the steering lock Insert key 3 into the steering lock and turn it to the ON position Verify that the security light illuminates for 1 to 2 seconds When the security light has gone out turn the key to the LOCK position and remove it from the steering lock Program all further keys according to step 6 and 7 Wait for 30 seconds before you start the vehicle with all keys to verify the correct function When confirming wait for more than 5 seconds before inserting the next key After successful key programming check PCM for stored DTCs r gt D 1007_013 1 Valid keys 4 New key 2 Keyi 5 Key 3 3 Key2 NOTE Each step should be performed within 30 seconds after the previous step NOTE If the key cannot be registered although the immobilizer system operates normal there may be a malfunction with the key reminder switch or wiring harness Curriculum Training 03 7 Immobilizer System Variants Key Programming with Code Word e The programming of additional keys requires a code word to be entered if only one key exists With one registered key 7 additional keys can be programmed according to the following procedure 1 2 10 11 Insert key 1 into the steering lock for more than1 second Pull out the key for approximately 1 cm and insert it again five times at no more than 1 sec
44. module always requires the code word to be entered while the PCM can be exchanged without code word when two registered keys exist MIS Service Function Table No Valid Key One Valid Key Exists More Than One Valid Key Exists Key Addition Code word input Code word input Usel valid keys to program replacement new keys Code word not necessary Follow procedure in the W M using old keys and new keys Ignition Lock Code word input Code word input replacement Replace both PCM and module a a module Folow Code word input Code word input Immobilizer procedure for PCM and immobilizer replacement Replace both PCM amp PCM immobilizer module Follow Code word input Follow procedure for PCM replacement procedure for PCM amp to learn valid keys immobilizer replacement replacement 1007_T002 03 6 Curriculum Training Immobilizer System Variants Key Programming without Code Word e Two keys are required to program 6 additional keys according to the following procedure 1 2 Insert key 1 into the steering lock for at least 1 second Pull out the key for approximately 1 cm and insert it again constantly five times at no more than 1 second intervals After the final key insertion verify that the security light illuminates Remove the key from the steering lock Verify that the security light goes out Insert key 2 into the steering lock and turn the key to the ON position Verify that the security light il
45. ond intervals After the final key insertion verify that the security light flashes 300 ms ON 300 ms OFF Wait for 5 minutes until the security light flashing frequency has slowed down to 1 2 second intervals Input the code word refer to the next page After verifying that the security light has changed from flashing to illumination turn the key to the ON position When the security light has gone out turn the key to the LOCK position and remove it from the steering lock Insert key 2 into the steering lock and turn it to the ON position Verify that the security light illuminates for 1 to 2 seconds After the security light has gone out turn the key to the LOCK position and remove it from the steering lock Insert key 3 into the steering lock and turn it to the ON position Verify that the security light illuminates for 1 to 2 seconds After the security light has gone out turn the key to the LOCK position and remove it from the steering lock Program all further keys according to step 8 and 9 Wait for 30 seconds before you start the vehicle with all keys to verify the correct function When confirming wait for more than 5 seconds before inserting the next key After successful key programming check PCM for stored DTCs r OD D 1007_014 1 New keys 4 Valid or new key 2 Keyi 5 Key 3 3 Key2 03 8 Curriculum Training Immobilizer System Variants Code Word Input Procedure e Acode word is compo
46. re only indicated when they are present The OBD function PID Parameter IDentification data monitoring allows to display the status of system parameters with the aid of e g WDS Depending on the PATS various PIDs are available refer to the respective W M However the following PID is available on all PATS NUMKEYS number of registered keys NOTE Troubleshooting should always start with the inspection of the security light and the DTC memory of PATS with WDS However it is possible that the security light may not properly display a DTC if it has a malfunction itself Therefore use the WDS for the troubleshooting on PATS malfunctions in any case NOTE If the immobilizer system has an intermittent malfunction inspect the respective wiring pins for tight seat good contact and the wiring for any open or short circuit Refer also to W M section General Information gt Electrical Systems and Engine gt Symptom Troubleshooting gt Intermittent Concern Troubleshooting NOTE When the engine does not start or starts but stalls afterwards and no DTC is indicated neither by the security light nor by the WDS the malfunction is most likely not related to the immobilizer system In this case you will find supporting information in the W M section Fuel and Emission Control System gt Engine Symptom Troubleshooting on the ESI CD Engine gt Symptom Troubleshooting Information for the Ma
47. sed of eight digits from 0 9 The manufacturer has programmed it as unique figure into the immobilizer module e When you have entered the mode for inputting the code word with an unregistered key according to the procedure described on the preceding page wait for 5 minutes until the security light flashes slowly flashing frequency changes from 300 ms ON 300 ms OFF to 1 2 s ON 1 2 s OFF e Input the code word according to the following procedure as shown in the example for the code word digits 3 and 1 1 Turn ignition switch to the ON position while the security light is OFF and count three illumination cycles When the light is OFF after the third illumination turn the key to the LOCK position 2 Wait at least one illumination cycle Then turn the ignition switch to the ON position within 30 seconds while the security light is OFF and count one illumination cycle While the light is OFF after the first illumination turn the key to the LOCK position Repeat step 2 for the remaining six digits 5 When the code word is correctly registered in the PCM the security light stops flashing and illuminates Carry on with the respective programming step 1007_015 Inputting the code word 3 and 1 1 Security light 6 On 2 On 7 Lock 3 Off 8 Ignition switch 4 One cycle or more A Code word 3 5 Within 30 seconds B Code word 1 NOTE The number 0 in a code word requires 10 illumination cy
48. tart the engine Key ID numbers for all keys being used must be re registered Two or more keys have to be registered to start the engine PCM replacement Using WDS Security Access gt Parameter Reset and Ignition Key Code Erase must be performed All keys should be available Key ID numbers for all keys being used need not to be re registered They are stored in the PCM and are automatically transmitted to the new IC Security Access gt Parameter Reset must be performed with WDS Instrument cluster replacement 1007_T009 Curriculum Training 03 27 Immobilizer System Variants D PATS Service Functions Table Mazda3 RX 8 tem 1 Procedure stststs CidC Key addition Key ID number of the key to be added must be registered in the IC or RKE Key ID number registration can be performed according to the following methods e Using two already registered keys Customer Spare Key Programming must be enabled lt Using WDS Security access gt Additional Key Programming Key deletion All key ID numbers are cleared Two keys have to be registered to start the replacement engine lt Using WDS Security Access gt Ignition Key Code Erase must be performed PCM replacement The key ID numbers of all keys being used need not to be re registered They are stored in the IC or RKE and automatically transmitted to the new PCM e Using WDS Security access gt Parameter Reset must be performed IC
49. tic Trouble Code by a corresponding flashing pattern of the security light and or can be retrieved from the immobilizer control module with the aid of the WDS Worldwide Diagnostic System Curriculum Training gt A Overview Immobilizer System Immobilizer Systems Used By Mazda e Mazda currently installs two basically different types of immobilizer systems Mazda Immobilizer System Passive Anti Theft System Mazda Immobilizer System e On the MIS Mazda Immobilizer System the immobilizer control function is assigned to a separate immobilizer module which is connected to the coil antenna PCM and security light This type has been the first immobilizer system used by Mazda in 1995 Over the years the system has been modified and extended with various functions MIS is currently installed in the following models Premacy CP MX 5 NB B Series UN MPV LW 1007 024 MIS of MX 5 NB 1 Security light 5 Immobilizer module 2 Coil antenna 6 Starter relay 3 Transponder key 7 Key reminder switch 4 PCM 01 2 Curriculum Training Immobilizer System Overview Passive Anti Theft System e The PATS Passive Anti Theft System is an immobilizer system that has been developed by Ford and used for the first time by Mazda in 1996 for the 121 ZQ In the meantime PATS has run through several stages of development Currently Mazda uses the following variants I PATS Integrated PATS D PATS Distributed PATS
50. u wish to continue 1007_S007 NOTE The PATS function menu of the Mazda Tribute EP is accessible via a timed security access instead of the coded security access Prior to granting security access the timed security access mode requires 10 minutes time delay instead of a code to be entered 03 32 Curriculum Training Immobilizer System Variants e lf you press Yes the WDS will display an outcode from the PATS control module Gaining Security Access Outcode ATA5B3 Please refer to your hotline or the manufacturer s website with this outcode to obtain an incode 1007_S008 NOTE When WDS displays the outcode do not turn the ignition switch from the LOCK position to the ON position more than 5 times and do not disconnect the battery cables Otherwise a new outcode will be generated for security reasons The outcode contains 6 digits and the incode 4 digits NOTE The Mazda dealer can obtain the incode from the Technical Hotline Technical Service Department with a prepared request form that must contain the outcode VIN and other data Curriculum Training 03 33 Immobilizer System Variants e After you have pressed the tick button the WDS displays a keyboard and instructs you to enter the incode Please enter the IN CODE 1007_S009 NOTE The Ignition has to be switched to the ON position while the incode is entered 03 34 Curriculum Training Immobilizer System
51. ulum Training Immobilizer System Variants DTC Table e The DTC tables of the different PATS variants basically contain the same DTCs They also provide a link for troubleshooting procedures appropriate to the DTCs DTC WDS Eo I a Security light flashing pattem Ae Detection condition Page hyperlinked No detected communication SECURITY LIGET B1681 P1260 with the coil 11 DTC B1681 P1260 SECURITY LIGHT 12 B2103 P1260 Coil malfunction 12 DTC B2103 P1260 SECURITY LIGHT u eee 3 B1600 P1260 Key ID number registration SECURITY LIGHT B2431 P1260 Sitor 13 DTC B2431 P1260_ The letters at the beginning of each DTC are only displayed when using the WDS and refer to the following B Body system P Powertrain system U Network communication system 1007 _T012 Excerpt of a DTC Table RX 8 NOTE Refer to the respective W M for the correct DTC table Curriculum Training 03 47 Immobilizer System List of Abbreviations CAN Controller Area Network RF ID Radio Frequency IDentification DDS 1 Diesel Diebstahl Schutz RKE Remote Keyless Entry DLC Data Link Connector I I SST Special Service Tool DSM Diesel Smart Module VIN Vehicle Identification Number DTC Diagnostic Trouble Code WDS Worldwide Diagnostic l System EPC Electronic Parts Catalogue W M Workshop Manual HEC Hybrid Electronic Cluster IC Instrument Cluster MIS Mazda Immobilizer System OBD On Board Diagnostics PATS Passive Anti The
52. ure and subjected to major or minor changes in the course of time To prevent any mis diagnosis refer always to the current service literature while working on immobilizer systems 00 2 Curriculum Training Immobilizer System Overview Overview Fundamentals The immobilizer system is a vehicle theft protection device that only allows an engine start with keys that have been registered previously So it serves to prevent theft by means such as a forged key or electrical hotwiring During operation the engine start is prevented because the PCM Powertrain Control Module has not been activated to enable ignition fuel supply injection and starter For their activation the PCM needs an enable signal that the right key is being used in the ignition lock Therefore each original key of the car is fitted with a microchip containing a unique ID number IDentification number which is registered in the control module of the immobilizer system The immobilizer system activates itself automatically when the ignition switch is turned to ACC or LOCK position The system can only be deactivated with a registered key Depending on the immobilizer type the security light signalizes system activation and malfunctions or only system malfunctions All immobilizer systems used at Mazda are equipped with an OBD On Board Diagnostic function to detect indicate and diagnose malfunctions A detected malfunction can be indicated as a DTC Diagnos
53. with the IC via CAN bus to increase anti theft protection On the Mazda3 the IC controls the immobilizer function and initializes the verification process of the ID number In addition the ID number and a specific code are exchanged with the PCM via CAN bus to increase anti theft protection 1007_005b PATS of Mazda3 BK 1 Coil antenna 6 Security light 2 IC 7 Starter 3 PCM 8 Fuel injectors 4 Transponder key 9 Electronic ignition 5 DLC 02 10 Curriculum Training Immobilizer System Components Remote Keyless Entry Module e Like the IC on the Mazda3 BK the RKE module comprises the PATS control function and other functions for the body electrical system It also compares the ID number and interchanges a specific code with the PCM via the CAN bus e The immobilizer function of the RKE module is the same as of the Mazda3 IC e The RX 8 SE is currently the only Mazda model that is equipped with a RKE module 1007_007 Location of RKE module 1007_028 1 RKE module NOTE The keyless entry system which is also controlled by the RKE module is not linked to any immobilizer function Curriculum Training 02 11 Components Immobilizer System DDS 1 Module e The MIS for diesel models equipped with a mechanical distributor type injection pump B 2500 UN MPV LV use the DDS1 carried over from the German term Diesel Diebstahl Schutz module to control the fuel shut
54. zda2 can be found on the service manual CD in section 303 14 Electronic Engine Controls 03 44 Curriculum Training Immobilizer System Variants Security Light e The security light of the PATS is controlled as follows 1 Immobilizer system activation is displayed by the security light which flashes repeatedly for 0 1 s every 2 s 2 The immobilizer function is de activated when the security light turns off 3 s after the ignition switch has been turned to the ON or START position 3 If the immobilizer system is not de activated malfunction detected by the OBD function the security light flashes or illuminates for 1 min depending on the malfunction The light flashes when DTC 16 or lower is detected The light illuminates when DTC 21 and higher is detected mof aremania oTe 1 Before displaying DTC ILLUMINATED III 11 12 13 14 15 16 GOES OUT ILLUMINATED 21 22 23 GOES OUT 1007_T011 4 After the detection period the security light flashes the corresponding DTC for approximately 1 minute before it goes out Each time the ignition switch is turned to the ON position the malfunction detection and indication process is repeated NOTE The security light of each model equipped with PATS except for Mazda3 and RX 8 indicates a detected malfunction using only flashing pattern no 1 NOTE The immobilizer control module can store multiple DTCs at the same time In this case only the present DTC with th
55. zer System Components Immobilizer Module e The immobilizer module controls the function of the MIS It consists of a printed circuit board with a memory chip attached to it The module is a sealed unit that cannot be repaired e The immobilizer module of the current MIS is connected to the Coil antenna transceiver PCM Security light in the IC Key reminder switch Starter circuit Ignition switch B and ground B IG1 1007_004 MIS wiring diagram of MPV LW Starter relay TR switch ATX Key reminder switch 0 From year 2000 onwards 1 Security light 6 Starter 2 Immobilizer module 7 PCM 3 Ignition switch start position 8 Coil antenna 4 9 5 1 Curriculum Training 02 7 Components Immobilizer System Immobilizer Module Variants e Depending on the respective MIS generation the immobilizer module features various functions 02 8 The first MIS generation uses a Temic immobilizer module since model year 1995 Engine is shut off two seconds after the start if a malfunction has been detected during the verification of ID number and or code word The second MIS generation uses a Lucas or Mitsubishi immobilizer module since model year 1997 Its operation is as per the first generation but in case of an immobilizer malfunction the engine start is prevented after three starting attempts Thereafter the engine is just cranked but not started Since 1998 a random co
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