Power Distribution Relay: Testing and Inspection

Normally-open type:




1. 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.

Radiator Fan Relay/Power Window Relay/Blower Motor Relay:

^ Radiator fan relay
^ Power window relay
^ Blower motor relay

ABS Pump Motor Relay:

^ ABS pump motor relay

Condenser Fan Relay/A/C Compressor Clutch Relay/Wiper Motor Relay/wiper High Relay:

^ Condenser fan relay
^ A/C compressor clutch relay
^ Wiper motor relay
^ Wiper high relay

Horn Relay/Cigarette Lighter Relay/A/T Reverse Relay/ABS Front Fail-safe Relay/ABS Rear Fail-safe Relay:

^ Horn relay
^ Cigarette lighter relay
^ A/T reverse relay
^ ABS front fail-safe relay
^ ABS rear fail-safe relay

Starter Cut Relay:

^ Starter cut relay

Headlight Relay:

^ Headlight relay

Rear Window Defogger Relay:

^ Rear window defogger relay

Normally-closed type:

Power Relays-Relay Test-Normally-closed Type:

1. Check for continuity between the terminals.
^ There should be continuity between the No. 1 and No. 3 terminals when power is not connected to the No. 2 and No. 4 terminals.
^ There should be no continuity between the No. 1 and No. 3 terminals when power and ground are connected to the No. 2 and No. 4 terminals.

Condenser Fan Relay/A/C Compressor Clutch Relay/Wiper Motor Relay/wiper High Relay:

^ Wiper low relay

Five-terminal type:




1. 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. 2 and No. 4 terminals when power is disconnected.

Dimmer Relay:

^ Dimmer relay

Intermittent Wiper Relay-Relay Test:

^ Intermittent wiper relay




^ Sunroof open relay
^ Sunroof close relay
^ Low beam cut relay