B1052

B1049 - B1052, B1054 - B1057 DRIVER AIRBAG MODULE





Description

DTC B1049 - B1052, B1054 - B1057 DRIVER AIRBAG MODULE
The driver air bag module is dual stage and wired to the air bag diagnosis sensor unit through the spiral cable.
The air bag diagnosis sensor unit will monitor for opens and shorts in detected lines to the driver air bag module including the spiral cable.

PART LOCATION
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 - SEE Diagnosis Procedure (Component Diagnosis).
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. Trouble Diagnosis Without CONSULT-III.
- END




Diagnosis Procedure (Component Diagnosis)
Recheck SRS after each replacement.
1.HARNESS CONNECTOR
Is there any visible damage to the connector?
YES or NO
YES - Replace the harness.
NO - GO TO 2
2.WIRING HARNESS
Is there any visible damage to the harness?
YES or NO
YES - Replace the harness.
NO - GO TO 3
3.DRIVER AIR BAG MODULE
Replace the driver air bag module. Driver Air Bag Module.
- GO TO 4
4.SPIRAL CABLE
Replace the spiral cable. Service and Repair.
- GO TO 5
5.AIR BAG DIAGNOSIS SENSOR UNIT
Replace the air bag diagnosis sensor unit. Service and Repair.
- GO TO 6
6.RELATED HARNESS
Replace the related harness.
- END