Ambient Light Sensor: Service and Repair

Automatic Lighting Sensor Test/Replacement

NOTE:

- Take care not to scratch the dashboard.
- Before testing, do the automatic lighting control unit input test, and check for continuity between the automatic lighting sensor and the automatic lighting control unit.

1. Pry out the automatic lighting sensor (A).





2. Turn the ignition switch to ON (II).

3. Measure the voltage between automatic lighting sensor 5P connector terminals No. 3 and No. 5.

Voltage should be:

- 3.6-3.7 V or more with the sensor out of direct sunlight.
- 3.3-3.5 V or less with the sensor in direct sunlight.

4. If the voltage is not as specified, replace the automatic lighting sensor.