Light Control Sensor: Inspection

WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Connect the connector.
Turn the ignition switch to ON, and set the lighting switch to the AUTO position.

Measure the voltage between connector terminals.

Preparation tool:

Circuit tester

Fig 1: Identifying Light Control Sensor Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Inspection conditions	Standard
2 (+) - 1 (-)	Measure the voltage when the area around the sensor - automatic light, which was dark, becomes bright.	Dark condition: Approx. 0.6 V or less
2 (+) - 1 (-)		Bright condition: Approx. 3.0 V or more

Replace the sensor - automatic light if the inspection result is not within the standard value.