Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Clear all FCM DTC's
3. Turn the Right Turn Signal on.
4. With the scan tool, read DTC's.
  Does the scan tool read: B1640-FRONT RIGHT TURN CONTROL CIRCUIT HIGH?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure
FRONT RIGHT TURN SIGNAL BULB
1. Turn the ignition off.
2. Inspect the Front Right Turn Signal Bulb Assembly.
  Is the inoperative bulb OK?
  
  Yes
  - Go to step 3
  No
  - Replace the Inoperative bulb in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure
L60 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 C2 connector.
3. Measure the resistance of the (L60) Front Right Turn Signal Control circuit.
  Is the resistance above 5.0 ohms?
  
  No
  - Repair the (L60) Turn Signal Control circuit for an open.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure
  Yes
  - Replace the Front Control Module.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure