B1121

B1120, B1121 SATELLITE SENS LH

Description

DTC B1120, B1121 [COMM FAIL] SATELLITE SENS LH
Main "G" sensor generates signal voltage, when it detects deceleration beyond the specified level by vehicle side collision.

OPERATION
When ACU defines both signal voltage of the "G" sensor and the Safing sensor to be that of collision which exceeds specified level, the driving circuit switches on and feeds the electric ignitor of both the side air bag and curtain air bag.

STRUCTURE
Integrated type of the G sensor element for side collision with output terminals for signal voltage.

INSTALLATION
LH satellite sensor is installed at the underside of center pillar with fixed nuts.

DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE (With CONSULT-III)

Step 1-2:

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

Step 1:

Step 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: