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Power Relay Test

Power Relay Test




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

NOTE: See turn signal/hazard relay input test.

Normally-open type A:







PGM-FI Main Relay 1, 2:




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.

Normally-open type B:




Blower Motor Relay:




Rear Window Defogger Relay:




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

Five-terminal type:




Moonroof Open Relay/Moonroof Close Relay/Low Beam Cut Relay (Canada):




PGM-FI Main Relay 2:




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.4 terminals when power is disconnected.