Original table alignment retained · Scroll horizontally if needed
Possible Sources
Wiring, terminals or connectors Low beams concern BCM
PINPOINT TEST B : THE PARKING, REAR OR LICENSE PLATE LAMPS ARE ON CONTINUOUSLY
B1 CHECK LOW BEAM HEADLAMP OPERATION
Ignition ON. Place the headlamp switch in the OFF position. Observe the operation of the LH and RH low beams.
Are the low beams illuminated?
Yes | REFER to: Headlamps (417-01 Exterior Lighting, Diagnosis and Testing). | |
|---|---|---|
No | GO to B2 | |
B2 CHECK THE BCM (BODY CONTROL MODULE) PARKING LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
Ignition OFF. Disconnect: BCM C2280C (For rear side marker or license plate lamps). Disconnect: BCM C2280E (For rear parking lamps). Disconnect: BCM C2280F (For front parking lamps). Disconnect: BCM C2280G (For front side marker lamps). Ignition ON.
Do the parking lamps continue to illuminate?
Yes | REPAIR the affected circuit. | |
|---|---|---|
No | GO to B3 | |
B3 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
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.