B1057

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. CHECK SELF-DIAG RESULT

With CONSULT
1.Turn ignition switch ON.
2.Perform "Self Diagnostic Result" mode of "AIR BAG" using 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 the diagnosis mode if no malfunction is detected in the 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 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 connector.

2. CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?
YES- GO TO 3.
NO- Replace wiring harness.

3. CHECK SPIRAL CABLE CIRCUIT-I

1.Turn ignition switch OFF.
2.Disconnect driver air bag module harness connector and combination switch (spiral cable) harness connector.
3.Check continuity between combination switch (spiral cable) terminals.





Is the inspection result normal?
YES- GO TO 4.
NO- Replace combination switch (spiral cable). Removal And Installation.

4. CHECK SPIRAL CABLE CIRCUIT-II

Check continuity between combination switch (spiral cable) terminals.





Is the inspection result normal?
YES- GO TO 5.
NO- Replace combination switch (spiral cable). Removal And Installation.

5. 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 6.
NO- INSPECTION END

6. REPLACE DRIVER AIR BAG MODULE

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