Parking, Rear and License Plate Lamps — 2016 workshop reference 5678

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.

The LED Signature Lamps Are Not The Same Intensity - Except China

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).

Possible Sources

Wiring, terminals or connectors

PINPOINT TEST C : THE LED (LIGHT EMITTING DIODE) SIGNATURE LAMPS ARE NOT THE SAME

INTENSITY - EXCEPT CHINA

C1 CHECK FRONT PARKING LAMP CIRCUIT FOR VOLTAGE

Ignition OFF. Disconnect: (Dimmer LED signature lighting) LH Headlamp C1021 or RH Headlamp C1041. Ignition ON. Place the headlamp switch in the PARKING LAMPS position. Measure:

Click to display connectors

LH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1021-5		Ground

Click to display connectors

RH Headlamp

Source reference 5678

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.