VIDEO

Informace

Mazda

Mazda P1742

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

Mazda P1742

Basic error definition

PASSENGER AIRBAG INDICATOR CIRCUIT LOW

Cause of DTC

With the ignition on and when requested to turn on by the Occupant Restraint Controller (ORC). The airbag warning lamp sets in the Cluster. The airbag indicator lamp circuit is monitored by the ORC at a rate of every 500ms. The Cluster software detects the resistance across the Airbag Lamp is less than 5K Ohm for five seconds. The fault will go from active to stored after the circuit voltage has returned to normal voltage range for five seconds. The supply voltage range is 9 - 16 volts