B1057

B1052, B1057 DRIVER AIRBAG MODULE

Description

DTC B1052, B1057 [SHORT] DRIVER AIRBAG MODULE
For driver air bag module, crash is judged by main "G" sensor output signal and Safing algorithm in front direction.

OPERATION
In case of frontal collision whose acceleration exceeds the specified level, the ignition materials are ignited by electric ignition system. The system burns and introduces the chemical reaction of gas generating materials to generate hot gases that flow into the air bag through a filter and expand the bag.

STRUCTURE
Driver air bag module mainly consists of air bag and inflator which inflates air bag.

INSTALLATION
Driver air bag module is installed on the center of steering wheel with fixed bolts.

DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE (WITH CONSULT-III)

Step 1:

DTC CONFIRMATION PROCEDURE (WITHOUT CONSULT-III)

Step 1:

Diagnosis Procedure

WITH CONSULT-III

WARNING:
- Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3 minutes. (To discharge backup capacitor.)
- Do not use unspecified tester or other measuring device.

DIAGNOSTIC PROCEDURE

Step 1-5: