VIDEO

Informace

Cadillac

Cadillac P0B91

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 P0B91

Basic error definition

Rýchlosť vozidla

Cause of DTC

Ak sa DTC B2557 sa zobrazí DTC U1000, vykonajte najprv bezproblémový diagnózu pre DTC U1000. Ak DTC B2557 sa zobrazí DTC U1010, vykonajte najprv bezproblémový diagnózu pre DTC U1010. BCM detekuje nasledujúce rozdiel medzi rýchlosťou vozidla z jednotného meter a jeden z pohonu ABS a elektrické jednotky pre kontinuálne 10 sekúnd: Jedným z nich je 10 km h alebo viac, a druhý je 4 h alebo menej.