Solar Sensor: Testing and Inspection

ON-VEHICLE INSPECTION

1. CHECK AIR CONDITIONING SOLAR SENSOR




a. Disconnect the A/C solar sensor connector.




b. Measure the resistance according to the value(s) in the table.




c. Measure the voltage according to the value(s) in the table.

2. INSPECT SOLAR SENSOR




a. Remove the A/C solar sensor with the connector still connected.
b. Apply battery voltage between terminals 6 (CLTB) and 3 (CLTE) of the A/C solar sensor.




c. Measure the voltage according to the value(s) in the table.

NOTE: The connection procedure for using a digital tester such as a TOYOTA electrical tester is given above. When using an analog tester, connect the positive (+) lead to terminal 2 and negative (-) lead to terminal 1 of the solar sensor.

HINT:
- As the inspection light is moved away from the sensor, the voltage increases.
- Use an incandescent lamp for inspection. Bring it about 30 cm (11.8 in.) from the solar sensor.