Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. 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, erase all TIPM DTCs.
3. Turn the Left Turn Signals on.
4. With the scan tool, read the DTCs.
  Does the scan tool display DTC 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 BODY VERIFICATION TEST .
(L63) LEFT REAR TURN LAMP DRIVER CIRCUIT SHORTED TO GROUND

Fig 1: Checking Left Rear Turn Lamp Driver Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C7 harness connector.
3. Disconnect the Left Tail Lamp Assembly harness connector.
4. Measure the resistance between ground and the (L63) Left Rear Turn Lamp Driver circuit.
  Is the resistance above 10k Ohms?
  
  Yes
  - Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the short to ground in the (L63) Left Rear Turn Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .