Power Steering Control Module Programming and Setup (Electronic
Power Steering)
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.
Power Steering Control Module Replacement
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.
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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.
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| 2. |
Perform the SPS function
Electronic Power Steering - Prepare Control Module for Removal and
follow the on-screen instructions. |
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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.
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| 4. |
With the Power Steering Assist
Motor replaced and reconnected, using the same scan tool, perform
the SPS function Electronic Power Steering - Programming and follow
the on-screen instructions. |
| 5. |
Perform the SPS function
Electronic Power Steering - Setup and follow the on-screen
instructions. |
| 7. |
Clear DTCs after completing
the programming and setup procedures. |
Power Steering Control Module Reprogramming
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.
| 2. |
Perform the SPS function
Electronic Power Steering - Programming and follow the on-screen
instructions. |
| 3. |
Perform the SPS function
Electronic Power Steering - Setup and follow the on-screen
instructions. |
| 5. |
Clear DTCs after completing
the programming and setup procedures. |
Steering Angle Sensor Centering and Software Endstop
Learning
For the steering angle sensor centering and software endstop
learning, refer to
Power Steering Control Module Calibration .
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