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, create a Vehicle Scan Report and attach it to the repair order.
3. Turn the ignition from on to off three times.
4. Turn the ignition on.
5. With the scan tool, read PDM 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 .
INSPECT MIRROR CONNECTIONS
1. Turn the ignition off.
2. Disconnect the Passengers Door Module C1 harness connector.
3. Inspect the wiring and connectors between the mirror and the Passengers Door Module.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE MIRROR ASSEMBLY
1. Measure the resistance between the (P554) Passenger Mirror Approach/Blindspot Lamp Return circuit and the (P712) Passenger Blind Spot Indicator Driver circuit in the PDM C1 harness connector.
  Is the resistance between 550.0 and 650.0 Ohms?
  
  Yes
  - Replace the Passenger 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
  - Replace the Outside Rearview Mirror Assembly in accordance with the Service Information. Refer to MIRROR, OUTSIDE REARVIEW, GLASS, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .