Description | Fault Trigger Conditions | |||
|---|---|---|---|---|
DTC | ||||
B143E:11 | Headlamp Switch Input: Circuit Short to Ground | A continuous memory DTC that sets when the BCM detects a short to ground on the headlamp switch input circuits. | ||
B1447:11 | Parklamp On Switch Input: Circuit Short to Ground | An on-demand DTC that sets when the BCM detects a short to ground on the parklamps on input circuit. | ||
B1D00:15 Left Low Beam: Circuit Short to Battery or Open | A continuous memory and on-demand DTC that sets when the BCM detects a short to voltage from the LH low beam output circuit. | |||
B1D01:15 Right Low Beam: Circuit Short to Battery or Open | A continuous memory and on-demand DTC that sets when the BCM detects a short to voltage from the RH low beam output circuit. | |||
Possible Sources
Wiring, terminals or connectors Headlamp switch BCM
Visual Inspection and Diagnostic Pre-checks
Inspect the headlamp switch for damage.
PINPOINT TEST E : ONE OR BOTH LOW BEAMS ARE ON CONTINUOUSLY - CHINA ONLY
E1 CHECK LOW BEAMS OPERATION
Ignition ON. Place the headlamp switch in the OFF position. Observe the operation of the LH and RH low beam.
Are both low beams illuminated?
Yes | GO to E2 |
|---|---|
No | GO to E7 |
E2 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 E3 |
|---|---|
No | INSTALL a new headlamp switch. REFER to: Headlamp Switch (417-01 Exterior Lighting, Removal and Installation). |
E3 CHECK THE HEADLAMP SWITCH GROUND CIRCUIT FOR AN OPEN
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C205-4 | Ground |
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.