MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE
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2016 workshop · Lighting

Turn Signal and Hazard Lamps

417-01 Exterior Lighting

2016 MustangReference 5,739 / 6,619HTML edition
← Chapter contentsProcedure contents

C6 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE FRONT TURN LAMP

Deactivate the hazard lamp function. Using a diagnostic scan tool, perform the BCM self-test. Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present). Activate the hazard flasher lamp function. Measure:

Click to display connectors

LH Turn Lamp

Positive Lead

Measurement / Action

Negative Lead

C156-3

Ground

Click to display connectors

RH Turn Lamp

Positive Lead

Measurement / Action

Negative Lead

C1042-3

Ground

Does the voltage alternate from 0 to greater than 11 volts?

Yes

INSTALL a new front turn signal bulb. REFER to: Front Turn Signal Lamp Bulb (417-01 Exterior Lighting, Removal and Installation).

No

GO to C8

C7 CHECK THE FRONT TURN LAMP GROUND CIRCUIT FOR AN OPEN

Measure:

Click to display connectors

LH Turn Lamp

Positive Lead

Measurement / Action

Negative Lead

C156-3

C156-1

Click to display connectors

RH Turn Lamp

Positive Lead

Measurement / Action

Negative Lead

C1042-3

C1042-1

Source reference 5739

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.