B1041

B1037, B1039, B1041 CRASH ZONE SENSOR





Description
Crash zone sensor is a G sensor that outputs voltage signal during deceleration at the time of a vehicle frontal collision that is more than the specified limit is detected.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform "AIR BAG" Self Diagnostic Result.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Diagnosis With Air Bag Warning Lamp.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES - SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure

WARNING:
- Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes or more. (To discharge backup capacitor.)
- Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES - GO TO 2.
NO - Replace harness connectors.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES - GO TO 3.
NO - Replace wiring harness.
3.REPLACE CRASH ZONE SENSOR
1. Replace crash zone sensor. Exploded View.
2. Perform DTC confirmation procedure. SEE DTC Logic.
Is DTC detected?
YES - GO TO 4.
NO - INSPECTION END
4.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Diagnosis Sensor Unit.
2. Perform DTC confirmation procedure. SEE DTC Logic.
Is DTC detected?
YES - GO TO 1.
NO - INSPECTION END