Autolamps — 2016 workshop reference 5597

Positive Lead	Measurement / Action	Negative Lead
C286-2		Ground

Is the voltage approximately 5 volts?

Yes	INSTALL a new autolamp and rain sensor or sunload sensor. REFER to: Light Sensor (417-01 Exterior Lighting, Removal and Installation).
No	GO to A3

A3 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.

The Autolamps 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
	DTC
B1A85:11	Ambient Sunload Sensor: Circuit Short To Ground	A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the light sensor input circuit.
			B1A85:13 Ambient Sunload Sensor: Circuit Open	An on-demand DTC that sets when the BCM detects an open or short to voltage from the light sensor input circuit.

Description

Fault Trigger Conditions

DTC

B1A85:11

Ambient Sunload Sensor: Circuit Short To Ground

A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the light sensor input circuit.

B1A85:13 Ambient Sunload

Sensor: Circuit Open

An on-demand DTC that sets when the BCM detects an open or short to voltage from the light sensor input circuit.

Source reference 5597

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.