VIDEO

Informace

Chevrolet

Chevrolet P1189

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

Chevrolet P1189

Basic error definition

Lamp Air Bag Warning Indicator Circuit Short to Battery

Cause of DTC

The Restraints Control Module (RCM) monitors the safety belt position through the safety belt buckle switch. The RCM provides the safety belt buckle status to the instrument cluster over the High Speed Controller Area Network (HS-CAN) communication bus. If the instrument cluster does not receive the safety belt buckle switch status from the RCM or the message is deemed invalid by the instrument cluster for greater than 5 seconds, the instrument cluster sets DTC U0151 and defaults the safety belt warning indicator off.