Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Turn the Left Turn Signal on.
4. With the scan tool, read DTCs.
  Does the scan tool display DTC: B1642-15-REAR LEFT TURN LAMP CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN?
  
  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 SIGNAL DRIVER CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS
1. Turn the Left Turn Signal off.
2. Turn the ignition off.
3. Disconnect the Left Tail Lamp Assembly C2 harness connector.
4. Disconnect the BCM E harness connector.
5. Turn the ignition on.
6. Measure the voltage between ground and the (L63) Left Rear Turn Signal Driver circuit.
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage in the (L63) Left Rear Turn Signal Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (L63) LEFT REAR TURN SIGNAL DRIVER CIRCUIT FOR AN OPEN IN THE HARNESS
1. Turn the ignition off.
2. Measure the resistance of the (L63) Left Rear Turn Signal Driver circuit between the Left Tail Lamp Assembly C2 harness connector and the BCM E harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the open in the (L63) Left Rear Turn Signal Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (Z914) GROUND CIRCUIT FOR AN OPEN IN THE HARNESS
1. Using a 12-volt test light connected to 12-volts, check the (Z914) Ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 5
  No
  - Repair the open in the (Z914) 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 E harness connector.
3. Connect a 12-volt test light between the (L63) Left Rear Turn Signal Driver circuit and the (Z914) Ground circuit at the Left Tail Lamp Assembly C2 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 Rear Turn Signal 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 BCM in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .