Diagnosis Procedure

SEATBACK THERMAL ELECTRIC DEVICE


Description

Installed in the seatback backside and heats or cools the airflow from the climate controlled seat blower motor in accordance with the control from the climate controlled seat control unit.




SEATBACK THERMAL ELECTRIC DEVICE


Diagnosis Procedure

1.CHECK SEATBACK THERMAL ELECTRIC DEVICE SIGNAL
1. Turn ignition switch ON.
2. Check voltage between seatback thermal electric device harness connector and ground.






NOTE:
Wait 1 minute or more after the activation start, and then start the measurement.
Is the inspection result normal?
YES - Replace seatback thermal electric device.
NO - GO TO 2.
2.CHECK SEATBACK THERMAL ELECTRIC DEVICE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
3. Check continuity between climate controlled seat control unit harness connector and seatback thermal electric device harness connector.





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





Is the inspection result normal?
YES - Replace climate controlled seat control unit. Refer to Disassembly and Assembly.
NO - Repair or replace harness.