B1022
B1022 OCCUPANT SENS C/UDescription
DTC B1022 [COMM FAIL] OCCUPANT SENS C/U
Suppresses the deployment of passenger air bag when the condition of passenger seat is empty, child and child-seat. And turn on cut-off telltale lamp when the condition of passenger seat is child-seat and child. In case of malfunction the blinking of the SRS air bag warning lamp tells the trouble to driver and by the on board self-diagnosis system or electro diagnosis tester CONSULT-III can detects the cause.
OPERATION
This unit classfies occupant on a passenger seat and detects electrical trouble in Occupant Classification System (OCS) and transmits trouble information to air bag control unit.
STRUCTURE
It is integrated into the seat sensor mat and detects the occupants and Occupant Classification System (OCS) control unit that classifies the occupants.
INSTALLATION
Occupant Classification System (OCS) control unit is installed in the passenger seat cushion.
DTC Logic
Step 1:
Step 1(Continued)-3:
DTC CONFIRMATION PROCEDURE (With CONSULT-III)
Step 1-6:
DTC CONFIRMATION PROCEDURE (Without CONSULT-III)
Diagnosis Procedure (Component diagnosis)
With CONSULT-III
CAUTION:
- 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.
Step 1-3:
DIAGNOSTIC PROCEDURE