Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Dakota. 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 FCM DTCs.
3. Turn the Right Turn Signals on.
4. With the scan tool read the DTC information.
  Does the scan tool read: B1647-REAR RIGHT 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 .
L62 RIGHT TURN SIGNAL CONTROL CIRCUIT

Fig 1: Checking Right Turn Signal Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the FCM PDM connector.
3. Measure the resistance between ground and the (L62) Rear Turn Signal Control circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 3.
  No
  - Repair the (L62) Rear Right Turn Signal Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
FRONT CONTROL MODULE
1. Turn the ignition off.
2. Disconnect the FCM connector.
3. Disconnect the PDM connector.
4. Measure the resistance between ground and the (L62) Right Turn Signal Control circuit in the PDM.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Module Power Distribution Center in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Front Control Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .