Check the resistance between switch door mirror terminals.

Preparation tool:

Circuit tester

Courtesy of SUBARU OF AMERICA, INC.

Changeover switch RH

Terminal No.	Inspection conditions	Standard
12 - 1 12 - 18	OFF	1 MΩ or more
12 - 18 17 - 1	UP	Less than 1 Ω
12 - 17 18 - 1	DOWN	Less than 1 Ω
12 - 16 18 - 1	LEFT	Less than 1 Ω
12 - 18 16 - 1	RIGHT	Less than 1 Ω

Changeover switch LH

Terminal No.	Inspection conditions	Standard
12 - 1 12 - 21	OFF	1 MΩ or more
12 - 20 21 - 1	DOWN	Less than 1 Ω
12 - 21 20 - 1	UP	Less than 1 Ω
12 - 19 21 - 1	LEFT	Less than 1 Ω
12 - 21 19 - 1	RIGHT	Less than 1 Ω

Apply battery voltage between the switch door mirror terminals to check lighting condition of illumination inside the switch.

CAUTION: When applying battery voltage, make sure that each polarity (positive (+) and negative (-)) is properly connected.
Incorrect polarity connection may cause LED damage inside the switch.

Terminal No.	Inspection conditions	Standard
24 (+) - 13 (-)	Apply battery voltage.	Light ON

Replace the switch power window main if it is found defective from the inspection result.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Remote Control Mirror Switch: Inspection

Use the Manual With the Right Hardware

When to See a Mechanic