VIDEO

Informace

Cadillac

Cadillac P0727

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

Cadillac P0727

Basic error definition

Engine Speed Signal Circuit Malfunction (4L30-E)

Cause of DTC

Engine started, and the PCM detected the engine speed signal was too low, too high, or the speed signal was unreliable for 4 seconds. Engine speed information is sent to the TCM by the PCM through the Controller Area Network or CAN. Two circuits are used