VIDEO

Informace

Chevrolet

Chevrolet P0135

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 P0135

Basic error definition

Derating (EPS Thermal Protection)

Cause of DTC

The EPS (MDPS=Motor Driving Power Steering) is the system that supports a drivers steering force by an electric motor. An electric motor consumes much current when it operates. If a driver steers full turn to the left or right over 10 times at stop condition, it can be overheat. To protect MDPS system from malfunctioning by overheating, EPS CM restricts the operating current of a electric motor. Generally, when the operating current is limited, it feels like that steering force is heavy. This code happens when a driver excessively steers at stop condition. At this time, clear DTC and wait for about 20 ~ 30 minutes with not steering. And then check if the steering force gets back to normal.