K38A Chassis Control Module - Auxiliary: Programming and Setup

Note:

  • Always verify the module has the newest software available before replacing the module.
  • 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 a battery maintainer or power supply that provides a steady and stable voltage. Do not use a battery charger, as charging voltage will often fluctuate when connected to the vehicle. This may interrupt programming. If a battery maintainer is not available, connect a fully charged 12 V jumper or booster pack disconnected form the AC voltage supply.
  • 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.

Replace and Program Control Module or Reprogram Control Module

To program a replacement or 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 K38A Chassis Control Module-Auxiliary - Programming and follow the on-screen instructions.
  3. Clear DTCs.
  4. With a scan tool, perform the Suspension Sensor Trim Height Calibration, if applicable.

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 after completing the repair.

Control Module References for control module replacement, programming and setup.