Diagnostic Test

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 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
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE (C17) PASSENGER MIRROR HEATER DRIVER CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the PDM C2 harness connector.
3. Turn the ignition on.
4. Measure the voltage between ground and the (C17) Passenger Mirror Heater Driver circuit at the PDM C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (C17) Passenger Mirror Heater Driver circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (C17) PASSENGER MIRROR HEATER DRIVER CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Measure the resistance of the (C17) Passenger Mirror Heater Driver circuit between the Passenger Outside Rearview Mirror (Component Side) connector and the PDM C2 harness connector.
  Is the resistance below 2.0 ohms?
  
  Yes
  - Go to 4
  No
  - Repair the (C17) Passenger Mirror Heater Driver circuit or the (C170) Passenger Mirror Heater Return circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (C170) PASSENGER MIRROR HEATER RETURN CIRCUIT FOR AN OPEN
1. Measure the resistance of the (C170) Passenger Mirror Heater Return circuit between the Passenger Outside Rearview Mirror (Component Side) connector and the PDM C2 harness connector.
  Is the resistance below 2.0 ohms?
  
  Yes
  - Replace the Passenger Outside Rearview Mirror in accordance with the Service Information. Refer to MIRROR, OUTSIDE REARVIEW, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 5
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all PDM harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all PDM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read PDM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Passenger Door Module (PDM) in accordance with the Service Information. Refer to MODULE, DOOR (DDM/PDM), REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.