Diagnostic Test
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR AN ACTIVE DTC
- With the scan tool, read the Body Control Module (BCM) DTCs and record on the repair order.
Is the DTC active?
Yes
- Go To 2
No
- The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. If no problems are found, test complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- With the scan tool, read the Body Control Module (BCM) DTCs and record on the repair order.
- CONFIGURE THE LIGHT RAIN SENSOR MODULE (LRSM) TO THE VEHICLE
- With the scan tool, program the LRSM 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 per cycle.
- With the scan tool, read the BCM DTCs.
Does the DTC return?
Yes
- Replace the Light Rain Sensing Module (LRSM) in accordance with the Service Information. Refer to MODULE, LIGHT RAIN SENSOR, REMOVAL .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Test complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .