SEAT HEATER SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses related to this system before inspecting the suspected areas below.

Seat Heater System
Symptom	Suspected Area	See page
Seat heater does not operate (Front LH side)*1	Seat heater switch	Click here
	Front seat cushion cover sub-assembly	Click here
	Front seat back cover sub-assembly	Click here
	Wire harness or connector	-
Seat heater does not operate (Front RH side)*1	Seat heater switch	Click here
	Front seat cushion cover sub-assembly	Click here
	Front seat back cover sub-assembly	Click here
	Wire harness or connector	-
Seat heater does not operate (Rear LH side)*2	No. 1 seat cushion cover sub-assembly LH	Click here
	No. 1 seat back cover sub-assembly LH	Click here
	Rear power seat switch (for rear left seat)	Click here
	Rear seat climate control ECU LH	-
	Position control ECU assembly (for rear left seat)	-
	Wire harness or connector	-
Seat heater does not operate (Rear RH side)*2	No. 1 seat cushion cover sub-assembly RH	Click here
	No. 1 seat back cover sub-assembly RH	Click here
	Rear power seat switch (for rear right seat)	Click here
	Rear seat climate control ECU RH	-
	Position control ECU assembly (for rear right seat)	-
	Wire harness or connector	-