Service Procedure

Important:
See the Vehicles Involved section of this bulletin to determine the service required for each individual vehicle.

Wire Repair (use only if applicable - refer to the Vehicles Involved section of this bulletin)

1. Hook up the Tech 2 to the vehicle.

1.1. Capture the DTCs, if required.

1.2. Clear the DTCs, if required.

1.3. Ensure that there are no DTCs present before proceeding to Step 2.

2. Lift and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.








3. Disconnect the left front and left rear wheel speed sensor wires. The front wheel speed sensor wire can be disconnected at the connection near the upper control arm pivot point on the frame (1). The left rear wheel speed sensor wire can be disconnected at the wheel speed sensor on the end of the axle housing near the wheel (2).

4. Using the Tech 2(R) determine if the DTC set corresponds to the wheel speed sensor that was disconnected.

^ If the DTC set corresponds to the sensor disconnected, proceed to Step 11.








^ If the DTC set does NOT correspond to the sensor disconnected, then the left and right wheel speed sensor wires are cross-wired. Lower the vehicle. Refer to the EBCM Wiring Schematic and Step 5.





5. Locate the electronic brake control module connector (EBCM).





6. Press the release tab and remove the under hood fuse block cover.





7. Press and hold the release tab while lifting to remove the connector from the EBCM, and fully open the connector to access the wires.





8. Remove the white dress cover from the connector.

9. Refer to the EBCM Wiring Schematic to locate the correct connector cavities and terminal wire colors for the cross-wired wheel speed sensors.
Note:
Wires into cavities 6 and 37 may be switched (front wheels) or wires into cavities 4 and 35 may be switched (rear wheels).








10. Remove one of the cross-wired terminal wires from its connector cavity and install this terminal wire in the correct location of the connector. Do likewise with the other cross-wired terminal wire. The two wires should now be located in each other's original pin locations in the connector.

11. Connect the wheel speed sensors and clear the DTCs. Ensure that there are no DTCs set.

12. Lower the vehicle.

Reprogram Procedure - (use only if applicable - see the Vehicles Involved section of this bulletin)

Tech 2 Legacy or J2534 Pass - Thru Programming Method for the EBCM

Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support.