Honda Pilot: Power Relay Test

Test

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*	Normally-open four-terminal type
A/C condenser fan relay*
Active control engine mount (ACM) control relay*
Cargo area accessory power socket relay*
Console accessory power socket relay*
DC-DC converter ACC relay*
DC-DC converter IG1 relay 1*
DC-DC converter IG1 relay 2*
Driver's seat heater relay (HIGH)*
Front accessory power socket relay*
Front blower motor relay*
Front fog light relay*
Front passenger's seat heater relay (HIGH)*
Fuel fill door opener solenoid relay*
Headlight relay*
Heated steering wheel relay*
Heated windshield wiper area relay*
Horn relay*
IG1A relay*
IG1B relay*
Injector relay*
Interior lights cut relay*
i-VTM relay* (AWD)
Left second row seat with one-touch access relay*
PGM-FI main relay 2*
Power tailgate relay*
Power window relay*
Radiator fan relay*
Rear accessory power socket relay*
Rear blower motor relay*
Rear window defogger relay*
Rear window wiper motor relay*
Right second row seat with one-touch access relay*
Second row seat heater relay*
Starter cut relay 1*
Starter cut relay 2*
Ventilated seat relay*
Brake light relay*	Five-terminal type
Driver's seat heater relay (LOW)*
Fan control relay*
Front passenger's seat heater relay (LOW)*
Rear window washer motor relay*
Windshield washer motor relay*

*: Carefully remove the relay using the special relay puller tool. Do not use pliers. Pliers will damage the relay.

Honda Pilot. Parts Test Info

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.

Honda Pilot. Parts Test Info

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.

Honda Pilot. Parts Test Info