VIDEO

Informace

Chrysler

Chrysler C157A

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

Chrysler C157A

Basic error definition

Invalid Data Received From Body Control Module-Signal Invalid

Cause of DTC

In Key-ON condition (engine off or on), the LSM (Lighting Supply Module) detects one of the following conditions: LSM (Lighting Supply Module) receives a wrong signal from the BCM (Body Control Module) for low beam activation request for at least 2 seconds.LSM (Lighting Supply Module) receives a wrong signal from the LSM (Lighting Supply Module) for high beam activation request for at least 2 seconds.LSM (Lighting Supply Module) detects a missing match in the following signals from BCM (Body Control Module) for at least 2 seconds: Low beam signal information variationLow beam activation requestLSM (Lighting Supply Module) detects a misalignment match in the combination of the following signals from BCM (Body Control Module) for at least 2 seconds: High beam signal information variationHigh beam activation request