Symptom Chart

Condition	Possible Sources	Action
No communication with the driver seat module (DSM)	Circuitry open	REFER to MULTIFUNCTION ELECTRONIC MODULES .
The mirrors are inoperative	Fuse Circuitry Exterior mirror control switch	Go to Pinpoint Test A .
A single mirror is inoperative	Circuitry Exterior mirror control switch Exterior mirror motor	Go to Pinpoint Test B .
A single mirror does not function with switch logic	Circuitry Exterior mirror control switch Exterior mirror motor	Go to Pinpoint Test C .
The memory mirror is inoperative	Fuse Driver seat module (DSM) Circuitry Exterior mirror motor Mirror control switch	Go to Pinpoint Test D .
The memory mirror is inoperative - memory set switch	Circuitry DSM Exterior mirror motor Memory set switch	Go to Pinpoint Test E .
The heated exterior mirror is inoperative	Circuitry Exterior rear view mirror	Go to Pinpoint Test F .
The auto-dimming mirror does not operate correctly	Obstructed rear-facing sensor: stickers, window decals, tags non-OEM window tinting Obstructed forward-facing sensor: stickers, window decals, tags non-OEM window tinting	If possible, REMOVE the obstruction. If the obstruction cannot be removed, go to Pinpoint Test G to test the auto-dimming mirror for correct function.
	Light source near or inside of vehicle	None. Any light source the rear-facing sensor is exposed to can be considered glare.
	Vehicle inside garage or tunnel	None. Ambient conditions are similar to nighttime conditions.
	Fuse Circuitry Auto-dimming interior mirror LH exterior rear view mirror	Go to Pinpoint Test G .