VIDEO

Informace

Lexus

Lexus B1211

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

Lexus B1211

Basic error definition

Recirculation Damper Motor Self-Adjustment, Faulty

Cause of DTC

When self-adjustment is activated the control module runs the motors to their limit positions in order to determine the limit position. A diagnostic trouble code (DTC) is stored if the control module detects that a damper motor has not reached its limit position depending on damper motor. Note! A new control moduleautomatically carries out self-adjustment when vehicle speed exceeds 30 km h for more than 15 seconds for the first time, unless self-adjustment has been activated with the Volvo on-board diagnostic (OBD) system. On old control moduleself-adjustment can only be carried out with the Volvo on-board diagnostic (OBD) system.