Seat Heater Symptom Diagnosis (If Equipped)

Condition	Possible Cause	Action
Both seatback and cushion do not become hot although seat heater switch is in “LO/HI” position	Faulty wiring or grounding	Repair wiring.
	Blown “S/H” fuse	Replace fuse to check for short.
	Faulty seat heater switch	Refer to Seat Heater Switch Inspection (If Equipped).
	Faulty seat heater circuit in seatback and/or seat cushion	Refer to Seat Heater Wire Inspection (If Equipped).
Only seatback does not become hot although seat heater switch is in “LO/HI” position	Faulty wiring	Repair wiring.
	Faulty seat heater circuit in seatback and/or seat cushion	Refer to Seat Heater Wire Inspection (If Equipped).
Only seat cushion does not become hot although seat heater switch is in “LO/HI” position	Faulty wiring	Repair wiring.
	Faulty seat heater circuit in seat cushion	Refer to Seat Heater Wire Inspection (If Equipped).