Seat Temperature Relay: Testing and Inspection

HEATED SEAT RELAY

Description

Power is supplied to the heated seat using ignition power supply control.


Component Function Check


1. CHECK FUNCTION

Check that heated seat warms to preset temperature when operating heated seat switch to the optimal position.
Is the inspection result normal?
YES- Heated seat relay function is OK.
NO- Refer to "Diagnosis Procedure"


Diagnosis Procedure


1. CHECK HEATED SEAT RELAY POWER SUPPLY

1.Turn ignition switch OFF.
2.Disconnect heated seat relay.
3.Turn ignition switch ON.
4.Check voltage between heated seat relay terminal connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. CHECK HEATED SEAT RELAY POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect fuse block (J/B) connector.
3.Check continuity between heated seat relay terminal connector and fuse block (J/B) harness connector.





4.Check continuity between heated seat relay terminal connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness.

3. CHECK HEATED SEAT RELAY GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between heated seat relay terminal connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK HEATED SEAT RELAY

Check heated seat relay.
Refer to "Component Inspection" .
Is the inspection result normal?
YES- Heated seat relay circuit is OK.
NO- Replace heated seat relay.

5. CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to "Intermittent Incident" Intermittent Incident
- INSPECTION END


Component Inspection


1. CHECK HEATED SEAT RELAY

1.Turn ignition switch OFF.
2.Disconnect heated seat relay.
3.Check continuity between heated seat relay terminals.










Is the inspection result normal?
YES- INSPECTION END
NO- Replace heated seat relay.