Power Relay Test
Special Tools Required
Relay puller 07AAC-000A1A0
Use this chart to identify the type of relay, then do the test listed for it.
Note. For the turn signal/hazard relay 1 input test (see TURN SIGNAL/HAZARD RELAY 1 INPUT TEST ).
| Relay | Test |
|---|---|
| A/C compressor clutch relay (1) | Normally-open type |
| Accessory power socket relay (1) | |
| A/F sensor relay (1) | |
| Blower motor relay (1) | |
| Control motor relay (HVAC) | |
| Fog light relay (1) | |
| Fuel fill door open relay (1) | |
| Headlight washer relay (1) (Canada models) | |
| Ignition coil relay (1) | |
| PGM-FI main relay 1,2 (1) | |
| Radiator fan control (RFC) unit relay | |
| Rear seat heater relay (Canada models) (1) | |
| Rear window defogger relay (1) | |
| Starter cut relay 1,2 | |
| Seat heater relay (1) | |
| SH-AWD relay (1) | |
| Throttle actuator control module relay (1) | |
| Windshield wiper motor relay (1) | |
| Daytime running lights relay (1) (Canada models) | Five-terminal type |
| ACC cut relay (1) | |
| IG2 cut relay (1) | |
| Adaptive cruise control (ACC) relay (1) | |
| Turn signal/hazard relay 2 (sounder) | Turn signal/hazard relay 2 |
| (1) Carefully remove the relay using the relay puller. Do not use pliers. Pliers will damage the relay. | |
| (1) | Carefully remove the relay using the relay puller. Do not use pliers. Pliers will damage the relay. |
RELAY REFERENCE CHART
Normally-open Type A
Check for continuity between the terminals.
- There should be continuity between the No. 1 and No. 2 terminals when power is connected to the No. 4 terminal and ground to the No. 3 terminal.
- There should be no continuity between the No. 1 and No. 2 terminals when power is disconnected.
Scheme 5
Normally-open Type B
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.
Scheme 6
Normally-open Type C
Check for continuity between the terminals.
- There should be continuity between the No. 4 and No. 2 terminals when battery positive terminal is connected to the No. 3 terminal, and battery negative terminal is connected to the No. 1 terminal.
- There should be no continuity between the No. 4 and No. 2 terminals when power is disconnected.
Scheme 7
Five-terminal Type B
Check for continuity between the terminals.
- There should be continuity between the No. 1 and No. 2 terminals when power is connected to the No. 5 terminal and ground to the No. 3 terminal.
- There should be continuity between the No. 1 and No. 4 terminals when power is disconnected.
Scheme 8
Turn Signal/Hazard Relay 2 (sounder)
Check for a sound from the turn signal/hazard relay 2. The relay should sound once when power and ground are connected to the No. 2 and No. 1 terminals, and No. 3 and No. 1 terminals.
Scheme 9
See also:
• TURN SIGNAL/HAZARD RELAY 1 INPUT TEST