Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Turn the drivers side turn signal on.
4. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
5. With the scan tool, read the DDM DTCs.
  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 and repair as necessary. If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P501) DRIVER MIRROR TURN SIGNAL DRIVER CIRCUIT FOR AN OPEN TO THE (P593) DRIVER MIRROR TURN SIGNAL LAMP RETURN CIRCUIT
1. Turn all accessories off.
2. Turn the ignition off.
3. Disconnect the Driver Outside Rearview Mirror C1 (Component Side) and C2 (Component Side) harness connectors from the Door Module.
4. Check for continuity between the (P501) Driver Mirror Turn Signal Driver circuit and the (P593) Driver Mirror Turn Signal Return circuit at the Driver Outside Rearview Mirror C2 (Component Side) harness connector.
  Is there continuity between the (P501) Driver Mirror Turn Signal Driver circuit and the (P593) Driver Mirror Turn Signal Return circuit?
  
  Yes
  - Go To 3
  No
  - Repair the (P501) Driver Mirror Turn Signal Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
MIRROR OR MODULE
1. Replace the Outside Rearview Mirror Assembly in accordance with the Service Information. Refer to MIRROR, OUTSIDE REARVIEW, GLASS, REMOVAL .
2. Turn the ignition on.
3. With the scan tool, record and erase DTCs.
4. Turn the passenger side turn signal on.
5. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
6. With the scan tool, read DDM DTCs.
  Is the DTC active?
  
  Yes
  - Replace the Driver Door Module in accordance with Service Information. Refer to MODULE, DOOR (DDM/PDM), REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .