Test Procedure
- 1. Power Relay - Test
Use this chart to identify the types of the relay, then do the test listed for it.
Relay Test A/C compressor clutch relay A/C condenser fan relay Blower motor relay Console accessory power socket relay Daytime running light relay (With LED daytime running light) Driver's seat heater relay (high) ETCS control relay Front accessory power socket relay Fog light relay Front passenger's seat heater relay (high) Horn relay Ignition coil relay Injector relay Interior light cut relay Power window relay PGM-FI main relay 1 PGM-FI main relay 2 PGM-FI subrelay Radiator fan relay Real time AWD relay Rear window defogger relay Rear window wiper main relay (with keyless access system) Starter cut relay (without keyless access system) Starter cut 1 relay (with keyless access system) Starter cut 2 relay (with keyless access system) Brake light relay (with ACC) Five-terminal type Driver's seat heater relay (low) Fan control relay Front passenger's seat heater relay (low) *: Carefully remove the relay using the special relay puller tool. Do not use pliers. Pliers will damage the relay.
Normally-Open Four-Terminal Type
Check for continuity between the terminals:
- There should be continuity between terminals No. 1 and No. 2 when 12 volt battery power is connected to terminal No. 3, and 12 volt battery ground is connected to terminal No. 4.
- There should be no continuity between terminals No. 1 and No. 2 when 12 volt battery power is disconnected.
Five-Terminal Type
Check for continuity between the terminals:
- There should be continuity between terminals No. 1 and No. 2 when 12 volt battery power is connected to terminal No. 3, and 12 volt battery ground is connected to terminal No. 5.
- There should be continuity between terminals No. 1 and No. 4 when 12 volt battery power is disconnected.


