Alternator Relay: Testing and Inspection

Generator Relay Continuity Check

Generator Relay:

1. Remove the generator relay from the relay box inside the engine compartment.

Generator Relay Continuity Check:

2. Use an ohmmeter check that there is continuity when the (+) terminal of the tester is connected to terminal 4 of the generator relay and the (-) terminal is connected to terminal 2.
3. Next, check that there is no continuity when the (+) terminal is connected to terminal 2 and the (-) terminal is connected to terminal 4.
4. If the continuity checks in steps (2) and (3) show a defect, replace the generator relay.