B1019

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

Locations.


DTC Logic


DTC DETECTION LOGIC

With CONSULT





Without CONSULT






DTC CONFIRMATION PROCEDURE (With CONSULT)


1. INSPECTION START

Turn ignition switch ON.
- GO TO 2.

2. CHECK SELF-DIAG RESULT

Check for the DTC on CONSULT.
Is the DTC detected?
YES- .
NO- Inspection End.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

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. Locations.
-END


Diagnosis Procedure (Component Diagnosis)

Recheck SRS after each replacement.

1. DTC

Does CONSULT 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. Removal And Installation With Climate Controlled Seats (with climate controlled seats) or Removal And Installation W/O Climate Controlled Seats (without climate controlled seats).
- GO TO 5

5. AIR BAG DIAGNOSIS SENSOR UNIT

Replace the air bag diagnosis sensor unit. Service and Repair.
-END.