DTC P1218 GMC
Implausible Heated Steering Wheel Temperature Message Received
Implausible Heated Steering Wheel Temperature Message Received
Description
The Heated Steering Wheel (HSW) Temperature Sensor is connected to either the Left or Right Steering Wheel Switch depending on vehicle configuration. The sensor data is transferred from the Steering Wheel Switch to the Steering Column Control Module (SCCM) by way of the LIN bus, a serial sub-bus. The data is then transferred to the BCM and HSM by way of the CAN bus.
Cause and Solution
HEATED STEERING WHEEL TEMPERATURE SENSOR SIGNAL CIRCUIT OPENHEATED STEERING WHEEL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUNDHEATED STEERING WHEEL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO THE SWITCH MUX RETURN CIRCUITHEATED STEERING WHEEL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO THE EVIC MUX RETURN CIRCUITHEATED STEERING WHEEL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO THE GROUND CIRCUITEVIC MUX RETURN CIRCUIT OPENHEATED STEERING WHEEL TEMPERATURE SENSORSTEERING WHEEL SWITCHSTEERING COLUMN CONTROL MODULE (SCCM)
Video Guide
Diagnostic Info
- DTC Code: P1218
- Brand: GMC