VIDEO

Informace

Chevrolet

Chevrolet P0989

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 P0989

Basic error definition

Invalid Data Received From Brake System Control Module

Cause of DTC

The powertrain control module (PCM) continuously monitors controller area network (CAN) for messages from the anti-lock brake system (ABS) module. This DTC sets when the PCM does not receive the ABS message within a defined time period, or when the message received is out of expected range, or if the message received contains invalid data. When this DTC is set the regenerative braking is disabled until the next driving cycle.