Circuit/System Verification

Verify that no DTCs are set, except DTC P158A.
- If any other DTC is set, except DTC P158A
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If only DTC P158A is set
Reprogram the K9 Body Control Module and the K20 Engine Control Module one after the other. Do not place the Ignition On/Vehicle in Service Mode between each programming event.
Verify DTC P158A does not set when operating the vehicle within the conditions for running the DTC.
- If the DTC does not set
All OK.