Diagnostic Test

WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase the DTCs.
3. Turn the rear defogger ON.
4. Operate the Mirror Switch in all directions several times.
5. With the scan tool, read the DTCs.
  Does the scan tool display: B1D34-DRIVER MIRROR HEATER CONTROL CIRCUIT HIGH?
  
  Yes
  - Go To 2.
  No
  - The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
TEST FOR A SHORTED MIRROR
1. Turn the ignition off.
2. Disconnect the Driver Door Module C2 connector.
3. Turn the ignition on.
4. With the scan tool, erase the DTCs.
5. Turn the rear defogger ON.
6. Operate the Mirror Switch in all directions several times.
7. With the scan tool, read the DTCs.
  Does the scan tool display: B1D34-DRIVER MIRROR HEATER CONTROL CIRCUIT HIGH?
  
  Yes
  - Replace the Driver Door Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Inspect the mirror harness wires for a shorted condition and repair as necessary. If the mirror wiring is OK, replace the Mirror in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .