Heated Steering Wheel: Notes
Component Location
Component Location
| Item | Description | Comments |
|---|---|---|
| 1 | Heated Steering Wheel Module (HSWM) | Located in the instrument panel, behind the FDIM |
Overview
The heated steering wheel system consists of the following components:
- Steering wheel heater elements
- Steering wheel temperature sensor
- Heated Steering Wheel Module (HSWM)
- FDIM
On all vehicles, slow heating between the 10 o'clock and 2 o'clock steering wheel hand positions is considered normal. On vehicles equipped with wood inserts in the steering wheel, there is no heating elements located under the inserts.
System Operation
System Diagram
Network Message Chart
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Climate control heated steering wheel request | HVAC module | Message used to control the heated steering wheel system on/off. |
| Load shed request | BCM-B | Indicates what level of load shed is commanded |
| Transport mode | BCM-B | Message used is used to reduce the drain on the battery during longer periods where the vehicle is not used. |
Heated Steering Wheel
The Heated Steering Wheel Module (HSWM) applies voltage and ground to the steering wheel heating elements (integral to the steering wheel). Steering wheels without wood inserts contain 3 heating elements. Steering wheels with wood inserts contain 2 heating elements. The heated steering wheel temperature is maintained by the Heated Steering Wheel Module (HSWM) using a sensor in the steering wheel (integral to the steering wheel).
The Heated Steering Wheel Module (HSWM) is designed to remain on, heating the steering wheel and maintaining temperature until switched off on the FDIM or the ignition is turned off.