Headlamps — 2016 workshop reference 5643

D2 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 D3
No		INSTALL a new headlamp switch. REFER to: Headlamp Switch (417-01 Exterior Lighting, Removal and Installation).

D3 CHECK THE HEADLAMP SWITCH GROUND CIRCUIT FOR AN OPEN

Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C205-4		Ground

Is the resistance less than 3 ohms?

Yes		GO to D4
No		REPAIR the circuit.

D4 CHECK THE HEADLAMP SWITCH CIRCUITS FOR A SHORT TO GROUND

Disconnect: BCM C2280B. Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C205-10		Ground
C205-11		Ground
C205-12		Ground
C205-13		Ground

Are the resistances greater than 10,000 ohms?

Yes		GO to D5
No		REPAIR the circuit in question.

D5 CHECK THE HEADLAMP SWITCH CIRCUITS FOR AN OPEN

Measure:

Click to display connectors

Source reference 5643

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.