For 1990-2009 cars

Step | Action | Normal Result(s) | Abnormal Result(s)*
--- | --- | --- | ---
1 |

1. Turn the ignition switch to the ON position.
2. Press the driver seat heater switch.

The driver seat warms up to a comfortable level.

The driver seat does not warm up. Refer to Heated Seat Inoperative for diagnosis.

2 | Press the passenger seat heater switch. | The passenger seat warms up to a comfortable level. | The passenger seat does not warm up. Refer to Heated Seat Inoperative for diagnosis.
3 | Press the LH rear seat heater switch. | The LH rear seat warms up to a comfortable level. | The LH rear seat does not warm up. Refer to Heated Seat Inoperative - Rear for diagnosis.
4 | Press the RH rear seat heater switch. | The RH rear seat warms up to a comfortable level. | The RH rear seat does not warm up. Refer to Heated Seat Inoperative - Rear for diagnosis.
* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.