VIDEO

Informace

KIA

KIA B2508

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

KIA B2508

Basic error definition

Left Front Wheel Sensor, Faulty Signal

Cause of DTC

The control module can register diagnostic trouble codes (DTCs) ABS-0011 and ABS-0021 in three different ways: 1. The control module activates the inlet and outlet valves to increase wheel speed when it registers (via the wheel sensor) that a wheel stops or rotates too slowly in relation to car reference speed when the car is being driven or the ABS system is operating and vehicle speed is above 20 km h (12.5 mph). Diagnostic trouble code (DTC) ABS-0011 or ABS-0021 is stored (depending on the wheel sensor) if wheel speed does not increase within 28 seconds and there is no open-circuit in the wheel sensor. 2. The control module has a counter (extrapolation counter) which counts the number of times changes in wheel speed are greater than permitted (calculated). Diagnostic trouble code (DTC) ABS-0011 or ABS-0021 is stored (depending on the wheel sensor) if wheel acceleration exceeds 100 g and wheel speed exceeds 20 km h (12.5 mph) (and not the same as vehicle speed) for more than 154 ms. 3. Diagnostic trouble code (DTC) ABS-0011 or ABS-0021 is stored (depending on the wheel sensor) if the control module registers that the signal from the wheel sensor is missing when starting from a speed below 6 km h (3.7 mph) or if the slowest wheel rotates at a speed less than 40-60 % (depending on vehicle speed) of the fastest wheel and no open-circuit is detected in the wheel sensor circuit.