Diagnostic Test
- CHECK FOR ACTIVE DTC
- With the scan tool, read Body Control Module (BCM) DTCs and record on the repair order.
- Record the Environmental Data.
- With the scan tool, erase DTCs.
- Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read BCM DTCs.
Did the DTC return?
Yes
- Go To 2
No
- Perform the TESTING FOR INTERMITTENT CONDITIONS procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
- CONFIGURE THE HUMIDITY RAIN LIGHT SENSOR (HRLS)
- With the scan tool, program the HRLS to the vehicle configuration.
- With the scan tool, erase BCM DTCs.
- Cycle the ignition switch from off to on at least five times, leaving the ignition on for a minimum of 90 seconds at each cycle.
- With the scan tool, read the BCM DTCs.
Does the DTC return?
Yes
- Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the Humidity Rain Light Sensor (HRLS) in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Test complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .