PINPOINT TEST A : BOTH FRONT FOG LAMPS ARE INOPERATIVE
A1 CHECK THE LOW BEAM OPERATION
Do the low beams operate correctly?
Yes | GO to A2 |
|---|---|
No | REFER to: Headlamps (417-01 Exterior Lighting, Diagnosis and Testing). |
A2 CHECK THE HEADLAMP SWITCH
Ignition OFF. Disconnect: Headlamp Switch C205. Carry out the headlamp switch component test. Refer to Wiring Diagrams Cell 149 for schematic and connector information.
Does the headlamp switch pass the component test?
Yes | GO to A3 |
|---|---|
No | INSTALL a new headlamp switch. REFER to: Headlamp Switch (417-01 Exterior Lighting, Removal and Installation). |
A3 CHECK THE BCM (BODY CONTROL MODULE) FOG LAMP SWITCH INPUT CIRCUIT FOR AN OPEN
Ignition OFF. Disconnect: BCM C2280B. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C205-14 | C2280B-20 |
Is the resistance less than 3 ohms?
Yes | GO to A4 |
|---|---|
No | REPAIR the circuit. |
A4 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
Disconnect and inspect all BCM connectors. Repair:
corrosion (install new connector or terminals – clean module pins) damaged or bent pins – install new terminals/pins pushed-out pins – install new pins as necessary
Reconnect the BCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.
Is the concern still present?
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.