VIDEO

Informace

Lexus

Lexus P0197

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

Lexus P0197

Basic error definition

Gauge Control Module Lost Communication with the MICU (RM Message)

Cause of DTC

Loose or poor connections between the Gauge Control Module and the MICUBlown fuse in the main under-hood fuse boxBlown fuse in the under-dash fuse relay boxOpen or Short to ground at the Gauge Control ModuleOpen or Short to ground at the MICUFaulty Gauge Control ModuleFaulty MICU