VIDEO

Informace

Audi

Audi P0731

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

Audi P0731

Basic error definition

Gear 1 incorrect ratio

Cause of DTC

Engine speed, >400 RPM Shift lever, D, S Output rev, < =500 RPM L-up condition, Off Input sensor, No back up condition Output sensor, Active or back up by ABS Model oil temp, > =0° C Engine speed, >400 RPM Output rev, >250 RPM Estimated engine torque, >100 Nm at 1st gear Shift lever, D, S Brake, Off Slip difference of output speed (In case ABS Valid) Difference < 10% Revolution sensor, No back up condition Model oil temp, > =20° C