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The following service procedures require either a programming or a setup event performed for a complete repair.
The electronic power steering control module is part of the power steering assist motor assembly and is electronically paired with the steering gear's sensors.
⇒ | If the complete steering gear INCLUDING the assist motor assembly was replaced, or for reprogramming of an existing power steering system WITHOUT replacement, refer to the POWER STEERING CONTROL MODULE REPROGRAMMING instructions in this article. |
⇒ | If ONLY the Power Steering Assist Motor assembly is replaced, follow the POWER STEERING CONTROL MODULE REPLACEMENT instructions. |
Note: During the procedures listed below, critical data is retrieved from vehicle components and stored in the scan tool computer's hard drive. This data is needed during the programming and setup sequences.
Ensure the same scan tool is used and capable of reading, storing, and writing the vehicle's system data.Note: Step 2 copies the worm gear wear counter data from the power steering control module PRIOR to the module's removal and stores it on the scan tool computer's hard drive.
AFTER completing step 2, the power steering control module can now be removed and replaced.Note: The next two steps will transfer the vehicle's critical data, including the worm gear wear counter data saved in step 2, back to the vehicle components.
Do not program or reprogram the electronic power steering control module unless directed by a service procedure or a service bulletin.
Note: This procedure applies to reprogramming of the existing steering gear or the initial programming if the complete steering gear assembly including the assist motor was replaced. If only the power steering control module is replaced, follow the Power Steering Control Module Replacement instructions above.
For the steering angle sensor centring and software endstop learning, refer to Power Steering Control Module Calibration .
© Copyright Chevrolet. All rights reserved |
© Copyright Chevrolet. All rights reserved |