Highlander 4WD V6-3.3L (3MZ-FE) (2004)
6. INSPECT SEPARATE TYPE FRONT SEATBACK COVER
a. Apply battery voltage and check the seatback heater.
If the result is not as specified, replace the seatback cover.
NOTE: After confirming that the seat heater is functioning normally, immediately remove the battery leads. Failing to do so will cause the
seat heater to overheat.
7. INSPECT SEPARATE TYPE FRONT SEATBACK COVER
a. Apply battery voltage and check the seat cushion heater.
If the result is not as specified, replace the seatback cover.
NOTE: After confirming that the seat heater is functioning normally, immediately remove the battery leads. Failing to do so will cause the
seat heater to overheat.