B1020

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. CHECK SELF-DIAG RESULT

With CONSULT
1.Turn ignition switch ON.
2.Perform "AIR BAG" Self Diagnostic Result CONSULT.
Without CONSULT
1.Turn ignition switch ON.
2.Check the air bag warning lamp status. On Board Diagnosis Function.
NOTE:
SRS does not enter diagnosis mode if no malfunction is detected in user mode.
Is malfunctioning part detected?
YES- .
NO- INSPECTION END


Diagnosis Procedure


WARNING:
- Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
- Never use unspecified tester or other measuring device.

DIAGNOSTIC PROCEDURE


1. CHECK HARNESS CONNECTOR

Check the connection of 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 OCCUPANT DETECTION SYSTEM CONTROL UNIT

1.Replace seat cushion frame. Removal And Installation.
2.Perform DTC confirmation procedure. .
Is DTC detected?
YES- GO TO 4.
NO- INSPECTION END

4. REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.Replace air bag diagnosis sensor unit. Removal And Installation.
2.Perform DTC confirmation procedure. .
Is DTC detected?
YES- GO TO 1.
NO- INSPECTION END