B1037

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 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. Refer to Reading and Clearing Diagnostic Trouble Codes.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES - Refer to B1037.
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 AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to Exploded View.
2. Perform DTC confirmation procedure. Refer to B1037.
Is DTC detected?
YES - GO TO 4.
NO - INSPECTION END
4.REPLACE CRASH ZONE SENSOR
1. Replace crash zone sensor. Refer to Exploded View.
2. Perform DTC confirmation procedure. Refer to B1037.
Is DTC detected?
YES - GO TO 1.
NO - INSPECTION END