Diagnosis Procedure

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.

   (+)		(-)	Voltage
   Heated seat relay
   Connector	Terminal
   M46	2	Ground	Battery voltage

Is the inspection result normal?

YES 

GO TO STEP 4  .

NO 

GO TO STEP 2  .

Check that the following fuse is not blown (open).

Is the fuse blown (open)?

YES 

Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).

NO 

GO TO STEP 3. 

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.

   Heated seat relay		Fuse block (J/B)		Continuity
   Connector	Terminal	Connector	Terminal
   M46	2	M133	30C	Existed

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

   Heated seat relay		Ground	Continuity
   Connector	Terminal
   M46	2		Not existed

Is the inspection result normal?

YES 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

NO 

Repair or replace harness.

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

Is the inspection result normal?

YES 

GO TO STEP 5  .

NO 

Repair or replace harness.

Check heated seat relay.

Refer to COMPONENT INSPECTION .

Is the inspection result normal?

YES 

GO TO STEP 6  .

NO 

Replace heated seat relay.

Check intermittent incident.

Refer to INTERMITTENT INCIDENT .

INSPECTION END