Circuit/System Verification
- Ignition ON/Vehicle In Service Mode.
- Verify DTC B1C6C is not set.
- If DTC B1C6C is set with symptom bytes 49, 54, or 55
- Perform all necessary programming and setup procedures for the control module that sets the DTC.
- Verify the DTC does not set.
- If the DTC sets, replace the control module that sets the DTC.
- Go to next step: If the DTC does not set
- All OK.