Power Relays Test

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

Relay Test 
Accessory power socket relay Normally- open type 
A/C compressor clutch relay 
A/C condenser fan relay 
Blower motor relay 
Cigarette lighter relay 
ETCS control relay 
Front fog light relay 
Ignition coil relay 
PGM-FI main relay 1 (FI MAIN) 
PGM-FI main relay 2 (FUEL PUMP) 
PGM-FI subrelay 
 Power window relay 
Radiator fan relay 
Rear window defogger relay 
Seat heater relay (HIGH) 
Security horn relay 
Starter cut relay 
Daytime running lights relay Five-terminal type 
Fan control relay 
Power mirror defogger relay 
Seat heater relay (LOW) 
Super locking relay 

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.