Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all FCM DTCs.
3. Turn the Fog Lamps on.
4. With the scan tool read the DTCs.
  Does the scan tool read: B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW?
  
  Yes
  - Go to step 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. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
(L139) FOG LAMP RELAY CONTROL CIRCUIT SHORTED TO GROUND
1. Turn the ignition off.
2. Remove the Fog Lamp Relay.
3. Disconnect the 49 way FCM IPM harness connector.
4. Measure the resistance between ground and the (L139) Fog Lamp Relay Control circuit at the relay connection.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (L139) Fog Lamp Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Replace the Front Control Module (FCM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .