Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Turn the Left Turn Signals on.
4. With the scan tool read the DTC information.
  Does the scan tool read: B1643-REAR LEFT TURN CONTROL CIRCUIT LOW?
  
  Yes
  - Go To 2
  No
  - The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(L63) LEFT TURN SIGNAL CONTROL CIRCUIT

Fig 1: Checking Rear Left Turn Signal Control Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the TIPM C3 connector.
3. Disconnect the Left Rear Tail Lamp connector.
4. Measure the resistance between ground and the (L63) Rear Left Rear Turn Signal Control circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (L63) Rear Left Turn Signal Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Totally Integrated Power Module in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .