Sunlight Sensor Test (With Climate Control)

Sunlight Sensor Test

NOTE: Before testing, check for HVAC DTCs. How to Troubleshoot the Climate Control System

1. Remove the sunlight sensor. Service and Repair

2. Turn the ignition switch to ON (II). Measure the voltage between the terminals with the (+) probe on the No. 4 (with automatic lighting sensor) or No. 1 (without automatic lighting sensor) terminal and the (-) probe on the No. 2 terminal with the connector connected.
NOTE: The voltage readings will not change under the light of a flashlight or a fluorescent lamp. 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.

3. If the voltage is not as specified, replace the sunlight sensor. Service and Repair

With automatic lighting sensor





Without automatic lighting sensor