B1659
B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW
For a complete wiring diagram Refer to Diagrams/Electrical.
- When Monitored:
- With the Fog Lamps activated.
- Set Condition:
- When the FCM detects a LOW condition.
Diagnostic Test
1.INTERMITTENT CONDITION
NOTE: Prior to testing, check and inspect that all applicable fuses are functional and working properly.
Turn the ignition on.
With the Scan Tool, clear all FCM DTC's.
Turn the Fog Lamps on.
With the Scan Tool read the DTC information.
Does the Scan Tool read: B1659-FRONT FOG LAMP 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-VER1. Body Verification Test
2.FRONT FOG LAMP BULBS
Turn the ignition off.
Inspect the Front Fog Lamp Bulb assembly for a short condition.
Is the inoperative bulb OK?
Yes
- Go To 3
No
- Replace the inoperative bulb.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
3.(L89) FOG LAMP CONTROL CIRCUIT
Turn the ignition off.
Disconnect the FCM PDM harness connector.
Measure the resistance between ground and the (L89) Fog Lamp Control circuit.
Is the resistance below 5.0 ohms?
Yes
- Replace the Front Control Module (FCM).
- Perform the BODY VERIFICATION TEST VER1. Body Verification Test
No
- Repair the (L89) Fog Lamp Control circuit for a short to ground condition.
- Perform the BODY VERIFICATION TEST VER1. Body Verification Test