Unit Inspection

WARNING: This page is about a different car, the 2014 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Preparation tool:

Circuit tester

Turn the ignition switch to ON.
Set the lighting switch to AUTO position.

Check the voltage between the sensor terminals.

Terminal No.	Inspection conditions	Standard	Connection diagram
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	Courtesy of SUBARU OF AMERICA, INC.
2 (+) - 1 (-)		Bright condition: Approx. 3.0 V or more	Courtesy of SUBARU OF AMERICA, INC.

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