Main Relay: Inspection

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 2	1 MΩ or more
3 and 4	130.4 - 230.8 Ω (when 20°C (68°F))

Connect battery positive terminal to terminal No. 3 and battery ground terminal to terminal No. 4, and measure the resistance between the main relay terminals.

Fig 2: Measuring Resistance Between Main Relay Terminals 1 And 2

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Standard
1 and 2	Less than 1 Ω