Circuit/System Description
For an overview of the component/system, refer to Heated Steering Wheel Description and Operation
| Circuit | Description |
|---|---|
| Ignition Circuit | Supplied from a relay. |
| Control Circuit | The output circuit is switched to ground to activate the component. |
| Ground Circuit | Chassis Ground |
| Component | Description |
|---|---|
| E15 Steering Wheel Heater | The steering wheel has a built-in resistor loop that heats the steering wheel. The temperature sensor is a negative temperature coefficient thermistor, a resistor which changes based on temperature. |
| K32 Steering Wheel Heating Control Module | When the control module receives a signal from the switch S70L it switches the steering wheel heating and the indicator On/Off. The control module is located inside the steering wheel. |
| S70L Steering Wheel Controls Switch - Left | The position of the switch S70L is read by the control module K32. The switch assembly has 1 function(s): E15 Steering Wheel Heater |