Diagnosis Procedure

1. Turn ignition switch ON.
2. Check voltage between seat cushion thermal electric unit harness connector and ground.

   (+)			(-)	Condition		Voltage (V) (Approx.)
   Seat cushion thermal electric unit
   Connector		Terminal
   Driver side	B533	61	Ground	Climate controlled seat switch	HEAT or COOL	0 - 12 *
   					Other than the above	0
   		62			HEAT or COOL	0 - 12 *
   					Other than the above	0
   Passenger side	B563	61		Climate controlled seat switch	HEAT or COOL	0 - 12 *
   					Other than the above	0
   		62			HEAT or COOL	0 - 12 *
   					Other than the above	0

   ^* : It value changes between 12 V and 0 V

   NOTE: Wait 1 minute or more after the activation start, and then start the measurement.

Is the inspection result normal?

YES

Replace seat cushion thermal electric unit.

NO

GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seat cushion thermal electric unit connector.
3. Check continuity between climate controlled seat control unit harness connector and seat cushion thermal electric unit harness connector.

   Climate controlled seat control unit			Seat cushion thermal electric unit		Continuity
   Connector		Terminal	Connector	Terminal
   Driver side	B661	61	B533	61	Existed
   		62		62
   Passenger side	B663	61	B563	61
   		62		62

4. Check continuity between climate controlled seat control unit harness connector and ground.

   Climate controlled seat control unit			Ground	Continuity
   Connector		Terminal
   Driver side	B661	61		Not existed
   		62
   Passenger side	B663	61
   		62

Is the inspection result normal?

YES

Replace climate controlled seat control unit.

NO

Repair or replace harness.