Power and Ground Distribution: Testing and Inspection

Power Relay Test

Special Tools Required

- Relay puller 07AAC-000A1A0
Use this chart to identify the type of relay, then do the test listed for it. Carefully remove the relay from the under-dash fuse/relay box using the relay puller. Do not use pliers. Pliers will damage the relay.










Normally-open Type

Check for continuity between the terminals.

- There should be continuity between terminals No. 1 and No. 2 when battery positive terminal is connected to terminal No. 4, and battery negative terminal is connected to terminal No. 3.

- There should be no continuity between terminals No. 1 and No. 2 when power is disconnected.









Five-terminal Type B

Check for continuity between the terminals.

- There should be continuity between terminals No. 1 and No. 2 when battery positive terminal is connected to terminal No. 5, and battery negative terminal is connected to terminal No. 3.

- There should be continuity between terminals No. 1 and No. 4 when power is disconnected.