Headlamps — 2016 workshop reference 5649

Is any voltage present?

Yes		REPAIR the circuit.
No		GO to E9

E9 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?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Click here to access Guided Routine (BCM).
No		The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical

Service Bulletins (TSBs) address this concern, Click here to access Guided Routine (BCM).

The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

One Or Both High Beams Are On Continuously

Refer to Wiring Diagrams Cell 85 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).

DTC Fault Trigger Conditions

Description	Fault Trigger Conditions
B1D02:15 Left High Beam Circuit: 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 high beam output circuit.
B1D03:15 Right High Beam Circuit: 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 high beam output circuit.

Description

Fault Trigger Conditions

B1D02:15 Left High Beam Circuit: 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 high beam output circuit.

B1D03:15 Right High Beam Circuit: 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 high beam output circuit.

DTC

Possible Sources

Wiring, terminals or connectors Headlamp assembly LH steering column multifunction switch SCCM

Source reference 5649

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.