B1018

B1017 - B1022 OCCUPANT CLASSIFICATION SYSTEM





Description

DTC B1017 - B1022 OCCUPANT CLASSIFICATION SYSTEM (OCS)
The occupant classification system control unit is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will monitor the occupant classification system for control unit and sensor mat failures and interruptions in communication between the OCS control unit and the air bag diagnosis sensor unit.

PART LOCATION
Refer to Locations.




DTC Logic

DTC DETECTION LOGIC

With CONSULT-III






Without CONSULT-III






DTC CONFIRMATION PROCEDURE (With CONSULT-III)
1.INSPECTION START
Turn ignition switch ON.
- GO TO 2.
2.CHECK SELF-DIAG RESULT
Check for the DTC on CONSULT-III.
Is the DTC detected?
YES - Refer to B1017.
NO - Inspection End.

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.IGNITION SWITCH
Turn ignition switch ON.
- GO TO 2
2.IGNITION SWITCH
After air bag warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
- GO TO 3
3.WAIT TIME
Wait more than 3 seconds.
- GO TO 4
4.REPEAT STEPS
Repeat steps 1 to 3 twice.
- GO TO 5
5.IGNITION SWITCH
Turn ignition switch ON.
- GO TO 6
6.DIAGNOSTIC MODE
SRS system is now in diagnostic mode and AIR BAG warning lamp flashes. Refer to Locations.
- END




Diagnosis Procedure (Component Diagnosis)
Recheck SRS after each replacement.
1.DTC
Does CONSULT-III indicate B1022?
YES or NO
YES - GO TO 2
NO - GO TO 4
2.HARNESS CONNECTOR
Is there any visible damage to the connector?
YES or NO
YES - Replace the harness.
NO - GO TO 3
3.WIRING HARNESS
Is there any visible damage to the harness?
YES or NO
YES - Replace the harness.
NO - GO TO 4
4.RH FRONT SEAT CUSHION ASSEMBLY
Replace the RH front seat cushion assembly. Refer to Coupe.
- GO TO 5
5.AIR BAG DIAGNOSIS SENSOR UNIT
Replace the air bag diagnosis sensor unit. Refer to Service and Repair.
- END.