9630 Instructions
Contents
1. IMPORTANT There may be more than one wire with the same color code on the plug Therefore it is important to verify that the wire selected is attached to the pin number indicated in the chart Double check both pin number and color code before proceeding Q Unwrap a section of the wire loom near the plug and separate the appropriate color code wire from the rest of the loom Cut the wire about 6 to 8 inches from the back of the plug Strip both ends of insulation Q Connect the yellow and green wires from the TruSpeed to the sensor wire according the last column in Chart A For clarification we are verifying here that the green TruSpeed wire attaches to the end of the sensor wire leading to the computer plug the yellow TruSpeed wire attaches to end of the sensor wire leading to the wire loom NOTE Improperly connecting the yellow and green wires will prevent the unit from operating properly IMPORTANT DIAGRAM 1 Soldering the speed signal wire connections is required Use the following method Q Slide the supplied heat shrink tubing over each wire to be connected Q Crimp each connection using the supplied non insulated terminals Q Solder both wires to the terminal Q After allowing the soldered connection to cool slide the heat shrink tubing over the connection and use an appropriate heat source to shrink the tubing Wrap the completed connection with electrical tape and place back in the factory wire loom FORM 34000 01 0322. 604 PRINTED IN U S A PAGE 8 OF 8 QO Reattach the plastic retainer on the back of the plug then reconnect the plug to the computer NOTE If the plug is held in place with a bolt carefully follow the instructions printed on the back of the plug regarding torque specifications QO Place the computer back in its mount if applicable and reattach all protective covers or shields in their factory positions IMPORTANT PRODUCT USE INFORMATION As a general rule when ever the tire diameter and or gear ratio of a vehicle has been changed the speedometer odometer will no longer be calibrated correctly and can give incorrect readings Many vehicle owners will change tires for different seasons such as snow and mud tires therefore it is important to always verify that the TruSpeed is properly set for the tire size and gear ratio on the vehicle Do not open or alter the TruSpeed case in any way Breaking the seal or opening the TruSpeed will void the warranty We will be happy to answer any questions concerning the design function and correct use of our products
3. B For vehicles not equipped with a VSSB refer to step 5 Remove the glovebox from the dash for access to the VSSB The VSSB is a small module located next the main vehicle computer It is normally secured in place with hook and loop tape and has an 8 or 9 pin plug Remove the VSSB from its mounting position and disconnect it from the plug Route the yellow and green wires from the TruSpeed module to the VSSB plug Use the supplied tie wraps as necessary to secure the wires away from any sharp edges high heat sources and moving components Identify the correct wire color code for the vehicle year and model in Chart A The color codes are notated in the chart with the primary color listed first and the stripe color if any second For example the color code for a 1999 Chevy Silverado with a V 8 is YEL BLK yellow with a black stripe The appropriate color code wire should be present on the VSSB plug If not contact Superlift before proceeding Unwrap a section of the VSSB plug loom for easier access to the wires and separate the proper color wire from the rest Cut the wire 6 to 12 inches from the VSSB plug and strip both ends of insulation Connect the yellow and green wires from the TruSpeed to the sensor wire according the last column in Chart A For clarification we are verifying here that the green TruSpeed wire attaches to the end of the sensor wire leading to the VSSB plug the yellow TruSpeed wire attaches to end
4. FORM 34000 01 032604 PRINTED IN U S A PAGE 1 OF 8 SUPERLIFT SUSPENSION SYSTEMS pe 300 Huey Lenard Loop Rd West Monroe Louisiana 71292 Phone 318 397 3000 Sales Tech 1 800 551 4955 FAX 318 397 3040 www superlift com Superlift TruSpeed ABS Anti lock Brake System Re Calibrator For 1998 and Newer General Motors Pickups and SUVs INSTALLATION INSTRUCTIONS INTRODUCTION Installation requires a professional mechanic The overall vehicle must be in excellent working condition repair or replace all worn parts Read instructions several times before starting Be sure you have all needed parts and know where they install Read each step completely as you go NOTES e The TruSpeed ABS re calibrator is designed only to correct the trouble codes and related ABS warning light caused by intalling 4 56 or lower numerically higher axle gears This unit is not adjustable and will not correct the speedometer reading If speedometer calibration is desired a TruSpeed Speed Sensor Calibrator part number 33003 is available separately e The TruSpeed ABS re calibrator can be used as a stand alone correction for the ABS warning light problems seen on 1998 and newer Chevy trucks equipped with 4 56 or lower axle gears However for best results Superlift recommends installing the re calibrator in conjunction with a TruSpeed Speed Sensor Calibrator to correct soeedometer reading e Though this product corrects the ABS trouble code
5. G HARDWARE Qty if more than one Quantity ET LOLO i AE TruSpeed calibrator 2 non insulated butt connectors length 1 8 heat shrink tubing 8 ring terminal fuse tap standard blade fuse tap mini blade spade terminal 210 blade spade terminal 110 blade 3 tie wraps 2 1 strip double sided tape 1 p 1 r 4 00465 decal Notification To Driver GENERAL INFORMATION The procedure below details installing the TruSpeed ABS re calibrator module Because some installers may be unfamiliar with electrical work it may be helpful to have a brief overview of how the TruSpeed module works and is installed ABS sensors emit a pulse that is sent to various vehicle systems for processing This pulse or signal is set by the OE manufacturer and is non adjustable The ABS controller or brain has a minimum and maximum operating range for this signal and if the signal goes outside the operating range it generates a trouble code and illuminates the ABS warning light Installation of 4 56 or lower numerically higher axle gears forces the signal to go outside the operating range even if the rest of the ABS system is functioning properly The TruSpeed module installs in line with the signal wire so the signal must now pass through the TruSpeed module to get to its destination It takes the original signal from the speed sensor that is no longer accurate due to the
6. VSSB behind glove box VSSB plug 0 YEL BLK 1827 Green wire to connector Yellow wire to loom S series Pickup SUY 4 3L 999_ VCM on passenger side front of engine compartment C1 blue 5 YELIBLK 1827 Green wire to connector C1 Yellow wire to loom S series Pickup SUV 2 2L 999_ PCM on passenger side front of engine compartment C1 blue 70 YEL BLK 1827 Green wire to connector C1 Yellow wire to loom S series Pickup SUV 4 3L 1998_ VCM on passenger side of engine compartment C1 blue 5 YELIBLK 1827 _ Green wire to connector C1 Yellow wire to loom S series Pickup SUV 2 2L 1998 PCM on passenger side of engine compartment C1 blue 70 YEL BLK 1827 Green wire to connector C1 Yellow wire to loom CIK Pickup 4 3L 998 _ VCM on driver side of engine compartment C1 blue 5 YEL BLK 1827 _ Green wire to connector C1 Yellow wire to loom CIK Pickup Suburban Tahoe amp Yukon 5 0L amp 5 7L 1998_ VCM on driver side of engine compartment C1 blue 5 WHT 696 Green wire to connector C1 Yellow wire to loom C K Pickup Sierra Suburban Tahoe amp Yukon 6 5L 1998 Vehicle Speed Sensor Buffer VSSB behind glove box VSSB plug 15 YELIBLK 696 Green wire to connector Yellow wire to loom CIK Pickup amp Suburban 7 4L 1998 _ VCM on driver side of engine compartment C1 blue 5 WHT 696 Green wire to connector C1 Yellow wire to loom FORM 34000 01 032604 PRINTED IN U S A PAGE 5 OF 8 4 SPEED SIGNAL WIRE CONNECTIONS ON VEHICLES EQUIPPED WITH A VSS
7. and warning light problem as described above while the vehicle is in operation the ABS warning light will occasionally illuminate when the vehicle comes to a complete stop As soon as the vehicle begins to move the light will go out and remain out This intermitent warning light is caused by the the position of the tone ring in relation to the the sensor when the vehicle comes to a stop Please inform the end customer of this situation as all will question it and some may find it unacceptable e Ifthe ABS warning light remains on after installation is complete there is a problem with the ABS system and the vehicle should be taken to a certified professional mechanic for analysis e A soldering iron or gun and wire crimping pliers are required for installation e A vehicle service manual should be on hand for reference e Route all wires away from any sharp edges or high heat sources Protect any wires as necessary to avoid chafing or short circuits e tis recommended that the TruSpeed ABS re calibrator be mounted somewhere in the passenger compartment of the vehicle However the TruSpeed is water resistant and can be mounted under the hood provided it is placed away from direct heat sources and protected from the weather FORM 34000 01 032604 PRINTED IN U S A PAGE 2 OF 8 PARTS LIST The part number is printed on an adhesive label Identify each part and place the appropriate mounting hardware with it PART NO DESCRIPTION NEW ATTACHIN
8. ation Connector color Pin no Wire Color circuit TruSpeed Connections Sierra Silverado light duty Tahoe Yukon amp Suburban 4 8L 5 3L amp 6 0L new style 2003 _ PCM on driver side front of engine compartment C2 red 49 YEL BLK 1827 _ Green wire to connector C2 Yellow wire to loom Sierra Silverado 4 3L 2003 _ PCM on driver side front of engine compartment C2 red 49 YEL BLK 1827 _ Green wire to connector C2 Yellow wire to loom Sierra Silverado HD 8 1L Duromax 6 6L 2003 _ PCM ECM on driver side of engine compartment C2 red 49 YEL BLK 1827 Green wire to connector C2 Yellow wire to loom S series Pickup SUV 2 2L 2003 _ PCM on passenger side of engine compartment C2 black 70 YELIBLK 1827 Green wire to connector C2 Yellow wire toloom S series Pickup SUV 4 3L 2003 _ PCM on passenger side of engine compartment C2 red 49 YEL BLK 1827 Green wire to connector C2 Yellow wire to loom Sierra Silverado light duty Tahoe Yukon amp Suburban 4 8L 5 3L amp 6 0L new style 2002_ PCM on driver side front of engine compartment C2 red 49 YEL BLK 1827 _ Green wire to connector C2 Yellow wire to loom Sierra Silverado light duty 4 3L 1500 2002_ VCM on driver side front of engine compartment C2 red 49 YELIBLK 1827 Green wire to connector C2 Yellow wire to loom Sierra Silverado HD 8 1L Duromax 6 6L 2002 PCM on driver side of engine compartment C2 red 49 YELIBLK 1827 Green wire to connector C2 Yellow wire to loo
9. d Q Use the fuse puller tool normally attached to the fuse block or the access door to pull the fuse indicated in the chart out of the block and set aside Q Turn the ignition switch to the on position Using a test light or voltmeter determine which side of the fuse terminal where you just removed the fuse is hot or receiving 12 volts Q Turn the ignition switch back to the off position Slide the appropriate fuse tapper into the hot side of the circuit two are provided with the module one for standard blade type fuses and one for mini blade fuses used in most late model vehicles and replace the fuse Disconnect the negative battery cable from the battery Q Trim the red wire from the TruSpeed module as necessary attach the supplied spade terminal and connect it to the fuse tapper 3 IDENTIFYING THE SPEED SIGNAL WIRE Q Refer to Chart A for the speed signal wire location and color code for the specific year model and engine size of the vehicle As shown in the chart on some vehicles the wire is located at the VSSB vehicle speed sensor buffer under the dash while on other vehicles the wire is on a plug attached to the PCM or VCM main vehicle computer under the hood PAGE 4 OF 8 PRINTED IN U S A FORM 34000 01 032604 CHART A GENERAL MOTORS Model Year Loc
10. ed in connector C2 on vehicles equipped with this computer Verify the pin number of the signal wire in chart A according the the vehicle model and year The pin numbers are visible when the plastic retainer is removed from the back of the plug Cr vy a r aeaea C2 Red or Black 41 Blue FORM 34000 01 032604 PRINTED IN U S A PAGE 7 OF 8 NOTE Be extremely careful when disconnecting the plug from the computer do not cock it to one side or pull on the wires in any way Also note the color of the plug is only visible once the plug is removed from the computer el Diagrama Theresa DIAGRAM 4 CONNECTOR C4 This black connector small plastic retaining clip on attaches to four plug computers The pins on the connector the back of the plug that are numbered on the back side behind the plastic retainer protects the wires where as shown All of the other connectors on two and four plug they enter the plug Very computers are numbered similarly carefully remove the retaining clip Once removed the pin numbers will be visible on the back of the plug Refer to columns 5 and 6 in Chart A for the pin 992208392099 number and speed signal 809000002000 wire color code for the vehicle For example a 2001 Silverado signal wire is DK GRN dark green on pin number 50 The information in the chart should match what is found on the plug If not contact Superlift before proceeding 12 11 10 9 8 7 6 5 4 3 2 1
11. gear change and alters it into the correct one for the gear combination The TruSpeed installation involves locating the proper ABS signal wire cutting it splicing in the TruSpeed wires and providing power to the module The module mounts inside the cab of the vehicle and requires a simple four wire hookup the red wire connects to a positive 12 volt source and the black wire connects to a good ground After the signal wire is cut the green wire connects to one end of the signal wire and the yellow wire hooks to the other end of the signal wire All of this is described in detail below Read through the entire procedure before beginning to familiarize yourself with it prior to beginning the installation If you feel uncomfortable with the installation contact Superlift or consult an expert in automotive electrical systems IMPORTANT The ABS system and all of its components must be in proper working condition in order for the TruSpeed ABS Re Calibrator module to be effective Even if the ABS system was in good working order prior to the gear change note that it is easy to damage the tone ring attached to the ring gear in the rear axle during the process of an axle gear installation A damaged tone ring will cause an ABS malfunction The module WILL NOT correct the ABS system or prevent the warning light from coming on if there is any problem with the ABS system Generally speaking if the ABS warning light was on prior to the gear change it will re
12. m S series Pickup SUV 2 2L 2002 _ PCM on passenger side of engine compartment C1 blue 70 YELIBLK 1827 Green wire to connector C1 Yellow wire toloom S series Pickup SUV 4 3L 2002 _ PCM on passenger side of engine compartment C2 red 49 YEL BLK 1827 Green wire to connector C2 Yellow wire to loom Bravada Envoy amp TrailBlazer_4 2L 2002 _ PCM upper left side of engine C1 blue 25 YELIBLK 1827 Green wire to connector C1 Yellow wire to loom Sierra Silverado light duty Tahoe Yukon amp Suburban 4 8L 5 3L amp 6 0L new style 2001_ PCM on driver side front of engine compartment C2 red 49 YELIBLK 1827 Green wire to connector C2 Yellow wire to loom Sierra Silverado light duty 4 3L 2001_ VCM on driver side front of engine compartment C2 red 49 YELIBLK 1827 _ Green wire to connector C2 Yellow wire to loom Sierra Silverado HD 8 1L Duromax 6 0L 2001_ PCM on driver side of engine compartment C2 red 49 YELIBLK 1827 _ Green wire to connector C2 Yellow wire to loom S series Pickup SUV 2 2L 2001_ PCM on passenger side of engine compartment C1 blue 70 YELIBLK 1827 _ Green wire to connector C1 Yellow wire toloom S series Pickup SUV 4 3L 2001 VCM on passenger side of engine compartment C2 red 49 YELIBLK 1827 Green wire to connector C2 Yellow wire to loom Sierra Silverado light duty Tahoe amp Suburban 4 8L 5 3L amp 6 0L new style 2000_ PCM on driver side front of engine compartment C2 red 49 YELIBLK 1827 Green wire
13. main on after the gear change even with the TruSpeed module installed In the event any warning light comes on and remains on the vehicle should be transported to a qualified repair facility for diagnosis and repair FORM 34000 01 032604 PRINTED IN U S A PAGE 3 OF 8 INSTALLATION PRODEDURE 1 PREPARE VEHICLE Q The vehicle should be in Park or First gear with the ignition in the off position 2 POWER CONNECTIONS NOTE Be sure to route all wires away from sharp edges and high heat sources As a general rule it is best to route all wires by following a factory wire loom whenever possible Q Find a suitable location inside the cab to mount the TruSpeed module The module is water resistant but it should be installed away from high heat sources such as the heating ducts and vents In most instances it can easily be attached to the bottom of the dash using the supplied Velcro Separate the red and black wires from the yellow and green wires on the TruSpeed module Using the supplied ring terminal route and attach the black wire from the module to a suitable ground Trim the wire to length as necessary L Locate the interior fuse block for the vehicle Fuse block location can be found in the vehicle owner s manual or service manual QO Identify a fuse circuit that is hot when the ignition switch is in both the start and run positions The fuse marked instrument cluster or gauges is most recommende
14. mputer s wire loom NOTE On 1999 and newer fullsize vehicles with the computer mounted close to the battery it is much easier to access the computer plugs if the computer is first removed from its mount it is simply clipped in place and requires no tools to remove Route the yellow and green wires from the TruSpeed module to the computer Use the supplied tie wraps as necessary to secure the wires away from any sharp edges high heat sources and moving components Diagrams 2 amp 3 General Motors uses two basic types of computers One has four relatively small plugs Diagram 2 while the other has two large plugs retained by small bolts in the center Diagram 3 Identify the type of computer on the vehicle Refer to Chart A for the appropriate connector number and color to disconnect from the computer General Motors has color coded all of its computer connectors making them easily identifiable The connector color is identified in the chart and in Diagrams 2 and 3 Carefully disconnect the appropriate plug from the computer DIAGRAM 2 FOUR PLUG COMPUTERS The speed signal wire is attached in plug C2 C3 or C4 with this type of computer Consult chart A for the specific plug and pin number for the vehicle year and model The pin numbers are visible once the plastic retainer is removed C1 blue C4 black C2 red plastic retainer DIAGRAM 3 TWO PLUG COMPUTERS The speed signal wire is locat
15. of the sensor wire leading to the wire loom IMPORTANT DIAGRAM 1 DIAGRAM 1 CONNECT AND SOLDER THE Soldering the sensor wire connections SENSOR WIRES AS SHOWN is required Use the following method Q Slide the supplied heat shrink eee panii tubing over each wire to be connected tubing pr Q Crimp each connection using the supplied non insulated terminals X Q Solder both wires to the terminal QO After allowing the soldered connection to cool slide the heat solder shrink tubing over the connection and soldered connection use an appropriate heat source to f shrink the tubing QO Wrap the completed connection with electrical tape and place back in the factory wire loom crimp connector NOTE Improperly connecting the yellow and green wires will prevent the unit from operating properly FORM 34000 01 032604 Q 5 PRINTED IN U S A PAGE 6 OF 8 Reconnect the VSSB and remount it in the factory location SPEED SIGNAL WIRE CONNECTIONS ON VEHICLES WITHOUT A VSSB On late model vehicles without a VSSB the TruSpeed is connected to the speed signal wire at the main computer called the PCM or VCM in service manuals Refer to Chart A or a factory service manual for the location of the vehicle s computer The majority of them are mounted on the driver side inner fender near the ABS module or battery Some are protected with a plastic cover or shield that must be removed in order to gain access to the co
16. to connector C2 Yellow wire to loom Sierra amp Silverado light duty 4 3L new style 2000_ VCM on driver side front of engine compartment C1 blue 5 YEL BLK 1827 _ Green wire to connector C1 Yellow wire to loom CIK Pickup 5 0L 5 7L amp 7 AL old style 2000_ VCM on driver side of engine compartment C1 blue 5 YEL BLK 1827 _ Green wire to connector C1 Yellow wire to loom C K Pickup 6 5L old style 2000_ Vehicle Speed Sensor Buffer behind glove box VSSB plug 0 YEL BLK 1827 _ Green wire to connector Yellow wire to loom S series Pickup SUV 2 2L 2000_ PCM on passenger side of engine compartment C1 blue 5 YELIBLK 1827 _ Green wire to connector C1 Yellow wire toloom S series Pickup SUV 4 3L 2000 _ VCM on passenger side of engine compartment C1 blue 70 YELIBLK 1827 Green wire to connector C1 Yellow wire to loom Sierra amp Silverado light duty 4 3L new style 999_ VCM on driver side front of engine compartment C1 blue 5 YELIBLK 1827 Green wire to connector C1 Yellow wire to loom Sierra amp Silverado light duty 4 8L 5 3L amp 6 0L new style PCM on driver side front of engine compartment C2 red 49 YEL BLK 1827 Green wire to connector C2 Yellow wire to loom CIK Pickup old style Escalade Suburban Tahoe amp Yukon 5 0L amp 5 7L amp 74L 1999_ VCM on driver side of engine compartment C1 blue 15 YELIBLK 1827 Green wire to connector C1 Yellow wire to loom Pickup and Suburban 6 5L old style 1999 Vehicle Speed Sensor Buffer
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