Repair and Diagnosis: Testing and Inspection

Power Relay Test




Use this chart to identify the type of relay, then do the test listed for it.

NOTE: for the turn signal/hazard relay input test.




Normally-open type

Check for continuity between the terminals.
- There should be continuity between the No.1 and No.2 terminals when power and ground are connected to the No.3 and No.4 terminals.
- There should be no continuity between the No.1 and No.2 terminals when power is disconnected.




Five-terminal type B

Check for continuity between the terminals.
- There should be continuity between the No.1 and No.2 terminals when power and ground are connected to the No.3 and No.5 terminals.
- There should be continuity between the No.1 and No.4 terminals when power is disconnected.