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Power Steering Control Module Programming and Setup





Power Steering Control Module Programming and Setup

Note:

* DO NOT program a control module unless directed to by a service procedure or a service bulletin. If the control module is not properly configured with the correct calibration software, the control module will not control all of the vehicle features properly.

* Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or control module damage may occur.

* Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. When required install the EL-49642 - SPS Programming Support Tool to maintain system voltage. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger.

* Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights (including daytime running lights), HVAC, radio, etc.

* During the programming procedure, follow the SPS prompts for the correct ignition switch position.

* Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.

Diagnostic Aids

The Electric Power Steering Control Module is part of the power steering assist motor assembly and is electronically paired with the steering gear's sensors.

Replace and Program Control Module

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.

To program a replacement control module, perform the following procedure:

Note: Step 1 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 1, the power steering control module can now be removed and replaced.

1. On the SPS Supported Controllers screen, select K34 Power Steering Control Module - Prepare Control Module for Removal and follow the on-screen instructions.

2. Replace the Power Steering Assist Motor containing the Power Steering Control Module. Refer to Power Steering Assist Motor Replacement Service and Repair.

Note: The next two steps will transfer the vehicle's critical data, including the worm gear wear counter data saved in step 1, back to the vehicle components.

3. On the SPS Supported Controllers screen, select K34 Power Steering Control Module - Programming and follow the on-screen instructions.

4. On the SPS Supported Controllers screen, select K34 Power Steering Control Module - Setup and follow the on-screen instructions.

5. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.

6. With a scan tool, perform the Steering Angle Sensor Centering and Software Endstop Learning procedure. Refer to Power Steering Control Module Calibration Power Steering Control Module Calibration.

7. With a scan tool, Clear all DTCs after completing the calibration procedure.

Reprogram Control Module

To reprogram an existing control module, perform the following procedure:

1. Access the Service Programming System (SPS) and follow the on-screen instructions.

2. On the SPS Supported Controllers screen, select K34 Power Steering Control Module - Programming and follow the on-screen instructions.

3. On the SPS Supported Controllers screen, select K34 Power Steering Control Module - Setup and follow the on-screen instructions.

4. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.

5. With a scan tool, perform the Steering Angle Sensor Centering and Software Endstop Learning procedure. Refer to Power Steering Control Module Calibration Power Steering Control Module Calibration.

6. With a scan tool, Clear all DTCs after completing the calibration procedure.

Unsuccessful Programming Recovery

In the event of an interrupted or unsuccessful programming event, perform the following steps:

1. Ignition ON. Ensure the control module, DLC and programming tool connections are secure and the SPS software is up to date.

2. Verify the control module can be reprogrammed.

• If the control module cannot be reprogrammed

1. Ignition OFF for one minute, ignition ON.

2. Verify the control module can be reprogrammed.

• If the control module cannot be reprogrammed, replace the control module.

• If the control module can be reprogrammed.

3. All OK.

• If the control module can be reprogrammed

3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

Control Module References Control Module References for Control Module replacement, programming and setup

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