Rear View Mirrors — 2016 workshop reference 917

The DDM supplies voltage and ground to the LH exterior mirror motors based on input provided by the exterior mirror control switch. To support the memory function, the DDM supplies a 5 volt reference and ground to the mirror motor sensors. The DDM monitors the feedback voltage from the horizontal and vertical sensors to determine the position of the LH mirror glass. The DDM is capable of storing Diagnostic Trouble Codes (DTCs) for the LH exterior mirror motor drive and mirror position feedback circuits when a concern exists.

DTC	Description	Fault Trigger Conditions
B1C09:11	Driver Left/Right Mirror Motor: Circuit Short To Ground	This continuous and on-demand DTC sets if the DDM detects a higher than expected current draw when voltage is applied to the horizontal mirror motor circuit.
	B1C09:15 Driver Left/Right Mirror Motor: Circuit Short To Battery Or Open	This continuous and on-demand DTC sets if the DDM detects a lower than expected current draw when voltage is applied to the horizontal mirror motor circuit.
B1C10:11	Driver Up/Down Mirror Motor: Circuit Short To Ground	This continuous and on-demand DTC sets if the DDM detects a higher than expected current draw when voltage is applied to the vertical mirror motor circuit.
	B1C10:15 Driver Up/Down Mirror Motor: Circuit Short To Battery Or Open	This continuous and on-demand DTC sets if the DDM detects a lower than expected current draw when voltage is applied to the vertical mirror motor circuit.
B1C13:11	Driver Up/Down Mirror Motor Feedback: Circuit Short To Ground	This continuous and on-demand DTC sets if the DDM detects a short to ground on the vertical position feedback circuit.
	B1C13:15 Driver Up/Down Mirror Motor Feedback: Circuit Short To Battery Or Open	This continuous and on-demand DTC sets if the DDM detects a short to voltage or open on the vertical position feedback circuit.
B1C14:11	Driver Left/Right Mirror Motor Feedback: Circuit Short To Ground	This continuous and on-demand DTC sets if the DDM detects a short to ground on the horizontal position feedback circuit.
	B1C14:15 Driver Left/Right Mirror Motor Feedback: Circuit Short To Battery Or Open	This continuous and on-demand DTC sets if the DDM detects a short to voltage or open on the horizontal position feedback circuit.
C1B15:11	Sensor Supply Voltage B: Circuit Short To Ground	This continuous and on-demand DTC sets if the DDM detects a short to ground on the LH exterior mirror position sensor voltage supply circuit.
	C1B15:15 Sensor Supply Voltage B: Circuit Short To Battery or Open	This continuous and on-demand DTC sets if the DDM detects a short to voltage or open on the LH exterior mirror position sensor voltage supply circuit.

Possible Causes

Wiring, terminals or connectors Exterior mirror control switch (integral to the front door window control switch) Exterior mirror DDM

Visual Inspection and Diagnostic Pre-Checks

Inspect BJB fuse 11 (30A).

PINPOINT TEST C : THE LH (LEFT-HAND) EXTERIOR MIRROR IS INOPERATIVE OR DOES NOT

OPERATE CORRECTLY IN ONE OR MORE DIRECTION(S) (WITH MEMORY MIRRORS)

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. Use only Rotunda Flex Probes (NUD105-

Source reference 917

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.