B1127

B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT

Description

DTC B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT
Detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air bag warning lamp in the combination meter. Malfunctioning part can be detected by on board self-diagnosis system and electro-diagnosis tester CONSULT-III.

OPERATION
It detects a shock that exceeds specified level and monitors such systems as the driver and passenger air bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate properly.

STRUCTURE
It contains the "G" sensors for both frontal and side collisions and spare battery function in case of main battery damage in collision.

INSTALLATION
SRS diagnosis sensor unit is installed under the center console with fixed bolts.

DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE (With CONSULT-III)

Step 1-2:

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

Step 1:

Step 1 (Continued)-2:

Diagnosis Procedure (Component diagnosis)

With CONSULT-III

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

DIAGNOSTIC PROCEDURE

Step 1-3: