Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. 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. Turn the Left Turn Signal on.
3. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2
  No
  - Test complete. 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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (L63) LEFT REAR TURN LAMP DRIVER CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the Left Turn Signal off.
2. Turn the ignition off.
3. Disconnect the License Lamp harness connector.
4. Disconnect the BCM C5/E harness connector.
5. Turn the ignition on.
6. Measure the voltage on the (L63) Left Rear Turn Lamp Driver circuit at the License Lamp harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage in the (L63) Left Rear Turn Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (L63) LEFT REAR TURN LAMP DRIVER CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Measure the resistance of the (L63) Left Rear Turn Lamp Driver circuit between the License Lamp harness connector and the BCM C5/E harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the open in the (L63) Left Rear Turn Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (Z924) GROUND CIRCUIT FOR AN OPEN
NOTE:
The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.
1. Using a 12 - volt test light connected to 12 - volts, check the (Z924) Ground circuit at the License Lamp harness connector.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 5
  No
  - Repair the open in the (Z924) Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE BCM FOR CORRECT OPERATION
1. Turn the ignition off.
2. Reconnect the BCM C5/E harness connector.
3. Connect a 12 - volt test light between the (L63) Left Rear Turn Lamp Driver circuit and the (Z924) Ground circuit at the License Lamp harness connector.
4. Turn the ignition on.
5. Turn the Left Turn Signal on.
  Does the test light blink on and off?
  
  Yes
  - Replace the Left Tail Lamp Bulb in accordance with the Service Information. Refer to LAMP, TAIL STOP TURN, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .