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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 ((Passenger Door Module (PDM) (DMFL/R) - Electrical Diagnostics)) >> DTC Troubleshooting >> B1DD0-15-Mirror Heater Control - Circuit Short To Battery Or Open >> Diagnostic Test

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.
  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, record and erase DTCs.
    3. Turn the turn signal on, if equipped with turn signal mirror.
    4. Turn the approach lamps on, if equipped.
    5. Turn the rear defogger on.
    6. Press and release the Mirror Select switch to select the Passenger Outside Rearview Mirror.
    7. Operate the Mirror Adjust switch in all directions several times while monitoring the scan tool for DTCs.
      NOTE:

      After adjusting the mirror in one direction wait at least two seconds before adjusting the mirror in the opposite direction, as this will allow time for an active fault to set if present.

    8. With the scan tool, read the 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 .
  2. 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 C2 (Component Side) connector from the Door Module C2 harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (C17) Passenger Mirror Heater Driver circuit in the Driver Outside Rearview Mirror C2 (Component Side) connector.

      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, GLASS, REMOVAL .
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (C17) PASSENGER MIRROR HEATER DRIVER CIRCUIT FOR A SHORT TO ANOTHER MIRROR DRIVER CIRCUIT 
    1. Check for continuity between the (C17) Passenger Mirror Heater Driver circuit and all of the Mirror Driver circuits in the Passenger Outside Rearview Mirror C2 (Component Side) connectors.

      Is there continuity between the (C17) Passenger Mirror Heater Driver circuit and all of the Mirror Driver circuits?

      Yes 

      • Repair all circuits with continuity for a short to the (C17) Passenger Mirror Heater Driver circuit. 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, GLASS, REMOVAL .
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  4
  4. 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.
      • Check for spread terminals and verify proper terminal tension.

      Repair any conditions that are found.

    5. Connect all PDM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Connect 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. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
    10. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Inspect the wiring and connectors for damage and repair as necessary. If the wiring and connectors are okay, replace the Door Module in accordance with the Service Information. Refer to MODULE, DOOR (DDM/PDM), REMOVAL .
      • Test complete. Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

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