LH Headlamp
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C1021-1 | C1021-8 | |
C1021-1 | C1021-14 |
Click to display connectors
RH Headlamp
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C1041-1 | C1041-8 | |
C1041-1 | C1041-14 |
Is the voltage greater than 11 volts?
Yes | GO to A8 |
|---|---|
No | REPAIR the circuit in question. |
A8 CHECK THE BULB
Substitute the known good High Intensity Discharge (HID) bulb from the same vehicle. Ignition ON. Place the headlamp switch in the HEADLAMPS position.
Does the inoperative headlamp illuminate?
Yes | REMOVE the known good bulb. INSTALL a new bulb. REFER to: Headlamp Bulb (417-01 Exterior Lighting, Removal and Installation). |
|---|---|
No | REMOVE the known good bulb. CHECK the internal headlamp harness for open or shorted circuits and damaged or pushed-out pins. If the harness is OK, INSTALL a new ballast. REFER to: Headlamp Assembly (417-01 Exterior Lighting, Removal and Installation). If the harness is not OK, REPAIR the harness. If the harness cannot be repaired, INSTALL a new headlamp assembly. REFER to: Headlamp Assembly (417-01 Exterior Lighting, Removal and Installation). |
A9 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.