VIDEO

Informace

GMC

GMC P1218

See the basic definition of a diagnostic error. This will help you to clarify the main causes of the fault code. You will understand the program of the control unit
Basic DTC analysis according to OBD2 protocol standard.

OBD2 or On-Board Diagnostics displays messages for basic group styles. More comprehensible code composition has been standard since 2000. The DTC code consists of five characters and its composition will be shown in this video

Insight into programming

The basic unit for the operation of any computer is the bit. Logic 0 and 1 are expressed by a single bit. Diagnostics The error code is composed of 16 bits. The first two bits define one of the four basic circuits. The video will show you a comprehensive overview of the composition of the error report

A diagnostically understandable description of the Diagnostic Trouble Code

GMC P1218

Basic error definition

Implausible Heated Steering Wheel Temperature Message Received

Cause of DTC

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.