Seat Heater Wire Inspection (If Equipped)
Precautions: Precautions for Body, Cab and Accessories · General safety (00)
1)Check that seat heater switch is in OFF position.
2)Disconnect connector of seat heater under seat cushion.
3)Measure resistance between terminals as shown below. If resistance is out of specification, replace faulty seat cushion heater and/or seatback heater.
Seat heater circuit resistance
Seat cushion side [A] (between terminal “B” and “C”, between terminal “A” and “C”): 4.7 – 5.7 Ω at 20 °C (68 °F)
Seatback side [B] (between terminal “F” and “D”): 10.7 – 13.1 Ω at 20 °C (68 °F)
| [A]: | Seat cushion side | 1. | Heater wire |
| [B]: | Seatback side | 2. | Thermostat |