VIDEO

Informace

Lexus

Lexus P0030

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 P0030

Basic error definition

CAN Data Configuration Setup Mismatch

Cause of DTC

The SJB monitors the headlight switch position by sending voltage reference signals on multiple circuits to the headlight switch. There is one circuit for each headlight switch position. At any given time, one of the signal circuits is routed to ground. If the SJB does not detect any of the inputs to the headlight switch are active (routed to ground) for 5 seconds, the SJB turns on the exterior lights and keeps them on for 10 minutes after the ignition switch is turned off (or 10 minutes from the time the SJB does not detect any headlight switch input if the ignition switch was already off). Additionally, if the SJB detects multiple circuits short to ground, the SJB implements a planned strategy depending on the multiple inputs received. Based on the multiple inputs received, the autolamps, the headlamps and or the parking lamps are turned on.