Turn Signal and Hazard Lamps — 2016 workshop reference 5723

DTC Description Fault Trigger Conditions B123A:15 Left Front Turn A continuous memory and on-demand DTC that sets when the BCM Indicator: Circuit Short detects an open or short to voltage from the LH front turn lamp voltage To Battery Or Open supply circuit. B123B:11 Right Front Turn A continuous memory and on-demand DTC that sets when the BCM Indicator: Circuit Short detects a short to ground from the RH front turn lamp voltage supply circuit. To Ground B123B:15 Right Front Turn A continuous memory and on-demand DTC that sets when the BCM Indicator: Circuit Short detects an open or short to voltage from the RH front turn lamp voltage To Battery Or Open supply circuit. U1000:00 Solid State Driver This DTC sets when the BCM has temporarily shut down the output driver. Protection Active -Driver The module has temporarily disabled an output because an excessive Disabled: No Sub Type current draw exists (such as a short to ground). The BCM cannot enable Information the output until the cause of the short is corrected, the Diagnostic Trouble Codes (DTCs) have been cleared and a successful self-test is run. U3000:49 Control Module: Internal This DTC sets when the BCM has permanently shut down the output driver. Electronic Failure The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCM can withstand. CORRECT the cause of the excessive current draw before installing a new BCM.

Original table alignment retained · Scroll horizontally if needed

Possible Sources

Bulb Rear lamp assembly Exterior mirror (without hood turn signals) Hood turn signal lamp (without exterior mirror turn signals) Wiring, terminals or connectors DDM PDM BCM

PINPOINT TEST B : ONE TURN SIGNAL LAMP IS INOPERATIVE OR ALWAYS ON - EXCEPT CHINA

B1 DETERMINE IF ANY TURN LAMP IS ALWAYS ON

Ignition ON. Activate the lamp function. Observe the front and the rear turn lamps. Deactivate the lamp function. Observe the front and the rear turn lamps.

Is any turn lamp continuously illuminated (not flashing) with the hazard lamp function deactivated?

Yes	For a front turn lamp, GO to B2 For a rear turn lamp, REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing). For an exterior mirror turn lamp or hood turn signal lamp (without memory seat), GO to B3 For an exterior mirror turn lamp (with memory seat), GO to B4
No	For a front turn lamp, GO to B5 For a rear turn lamp, if the stoplamps operate correctly, GO to B15 For a rear turn lamp, if the stoplamps do not operate correctly, REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing). For an exterior mirror turn lamp or hood turn signal lamp, GO to B10

Yes

For a front turn lamp, GO to B2 For a rear turn lamp, REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing).

For an exterior mirror turn lamp or hood turn signal lamp (without memory seat), GO to B3 For an exterior mirror turn lamp (with memory seat), GO to B4

For a front turn lamp, GO to B5 For a rear turn lamp, if the stoplamps operate correctly, GO to B15 For a rear turn lamp, if the stoplamps do not operate correctly, REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing).

For an exterior mirror turn lamp or hood turn signal lamp, GO to B10

Source reference 5723

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.