MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Lighting

Interior Lighting

417-02 Interior Lighting

2016 MustangReference 5,821 / 6,619HTML edition
← Chapter contentsProcedure contents

Condition

Possible Sources

Actions

An individual ambient lighting LED is inoperative/does not cycle through all color combinations

Refer to the Pinpoint Test

GO to Pinpoint Test J

Pinpoint Tests

The Courtesy Lamps Do Not Illuminate With a Door Open

Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC

Description

Fault Trigger Conditions

B1175:01 Driver Door Ajar Switch: General

Electrical Failure

An on-demand DTC that sets when the BCM detects a fault on the LH front door ajar circuit.

B1176:01 Passenger Door Ajar Switch: General

Electrical Failure

An on-demand DTC that sets when the BCM detects a fault on the RH front door ajar circuit.

Possible Sources

Wiring, terminals or connectors Door latch BCM

PINPOINT TEST A : THE COURTESY LAMPS DO NOT ILLUMINATE WITH A DOOR OPEN

A1 CHECK THE DOOR AJAR SWITCH OPERATION

Disconnect: suspect door latch.

Do the courtesy lamps illuminate?

Yes

INSTALL a new front door latch. REFER to: Front Door Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).

No

GO to A2

A2 CHECK THE DOOR AJAR SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND

Disconnect: BCM C2280E. Measure:

Click to display connectors

LH Front Door Ajar Switch

Source reference 5821

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.