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.














Normally-open Four-terminal type

Check for continuity between the terminals.

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

Check for continuity between the terminals.

- There should be continuity between terminals No. 1 and No. 2 when the battery positive terminal is connected to terminal No. 5, and the battery negative terminal is connected to terminal No. 3.
- There should be continuity between terminals No. 1 and No. 4 when power is disconnected.