Main Relay: Inspection

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Check that the main relay has no deformation, cracks or other damages.

Measure the resistance between main relay terminals.

Fig 1: Measuring Resistance Between Main Relay Terminals

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Standard
1 and 3	1 MΩ or more
2 and 4	80.55 - 98.45 Ω (when 20°C (68°F))

Connect battery positive terminal to terminal No. 2 and battery ground terminal to terminal No. 4, and measure the resistance between the main relay terminals.

Fig 2: Connecting Battery Positive Terminal To Terminal No. 2

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Standard
1 and 3	Less than 1 Ω