VIDEO

Informace

Chevrolet

Chevrolet P1B49

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 P1B49

Basic error definition

Shift Fork Position Sensor 2 System (Neutral)

Cause of DTC

Voltage of battery: 8 V or more. Voltage of battery: 16.5 V or less. Engine speed: 650 r min or more. Time since above engine condition: 1.5 seconds or more. Input shaft 1 (odd) speed: 500 r min or more. Input shaft 2 (even) speed: 500 r min or more. Shift fork 2 position: Neutral. Input shaft 2 (even) gear: Engaged. Engine speed - input shaft 2 speed: 50 r min or less. The calculated speed remains 40 r min or more for 500 millisecond.