Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. 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 the Diagnostic Trouble Codes (DTCs).
3. Turn the rear defogger OFF.
4. Press and release the Mirror Select switch to select the Passenger Outside Rearview Mirror.
5. Operate the Mirror Adjust switch in all directions several times.
6. With the scan tool, read PDM DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - The conditions that caused this code to set are not present at this time. For vehicle's equipped with folding outside rearview mirrors, repeat test with mirror folded. If DTC is now active, Go To 2. Otherwise, use the wiring diagram/schematic as a guide and inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (C17) PASSENGER MIRROR HEATER DRIVER CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the Passenger Outside Rearview Mirror (Component Side) connector from the PDM C2 harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (C17) Passenger Mirror Heater Driver circuit between the Passenger Outside Rearview Mirror (Component Side) connector and ground.
  Is there any voltage present?
  
  Yes
  - Repair the (C17) Passenger Mirror Heater Driver circuit for a short to voltage. If the wiring harness and connector are okay, replace the Passenger Outside Rearview Mirror in accordance with the Service Information. Refer to MIRROR, OUTSIDE REARVIEW, REMOVAL and MIRROR, OUTSIDE REARVIEW, GLASS, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (C17) PASSENGER MIRROR HEATER DRIVER CIRCUIT AND (C170) PASSENGER MIRROR HEATER RETURN CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Check for continuity between the (C17) Passenger Mirror Heater Driver circuit and the (C170) Passenger Mirror Heater Return circuit at the Passenger Outside Rearview Mirror (Component Side) connector.
  Is the resistance approximately 10.0 Ohms?
  
  Yes
  - Replace the Passenger Door Module (PDM) in accordance with the Service Information. Refer to MODULE, DOOR, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the (C17) Passenger Mirror Heater Driver circuit or the (C170) Passenger Mirror Heater Return circuit for an open. If the wiring harness and connector are okay, replace the Passenger Outside Rearview Mirror in accordance with the Service Information. Refer to MIRROR, OUTSIDE REARVIEW, REMOVAL and MIRROR, OUTSIDE REARVIEW, GLASS, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .