AUTO-DIMMING MIRROR INSPECTION

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Operational Inspection

1.  Switch the ignition to ON.

2.  Move the vehicle to a place with a showroom level of brightness.

3.  Verify that the indicator light is illuminated.

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4.  Verify that the indicator light switches when the auto-dimming mirror on/off switch is pressed.

5.  While the indicator light is illuminated, verify that the mirror surface brightens.

6.  Cover the front light sensor with a hand and verify that the mirror surface darkens when light is shone on the rear light sensor.

7.  Remove your hand covering the front light sensor and verify that the mirror surface brightens.

•  If the auto-dimming mirror does not operate, inspect the terminal voltage. (See Terminal Voltage Table (Reference).)

Terminal Voltage Table (Reference)

1.  Measure the voltage at each terminal. (other than terminal A)

•  If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under “Inspection item (s)” and related wiring harnesses.

2.  Inspect the auto-dimming mirror connector for continuity at terminal A.

3.  If the system does not work properly even though the inspection items or related wiring harnesses do not have any malfunction, replace the auto-dimming mirror.

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Terminal	Signal name	Connected to	Measured condition	Voltage (V)/Continuity	Inspection item(s)
A	GND	Body ground	Under any condition: Inspect for continuity to ground.	Continuity detected	•  GND •  Related wiring harnesses
C	R range signal	Back-up light switch/TR switch	R range	B+	•  Back-up light switch/TR switch •  Related wiring harnesses
			Other than R range	1.0 or less
D	Power supply	BCM	Ignition switch at ON	B+	•  BCM/ •  Related wiring harnesses