B1209

Description

The air bags and seat belt pre-tensioners for driver and passenger are activated by the air bag diagnosis sensor unit signal transmitted at the time of the frontal collision.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. CHECK SELF-DIAG RESULT

With CONSULT
1.Turn power switch ON.
2.Perform "Self Diagnostic Result" mode of "AIR BAG" using CONSULT.
Without CONSULT
1.Turn power switch ON.
2.Check the air bag warning lamp status. Refer to "On Board Diagnosis Function" 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- Refer to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


WARNING:
Always observe the following items for preventing accidental activation.
- Before servicing, turn power switch OFF, disconnect 12V battery negative terminal, and wait at least
3 minutes or more. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery. (To discharge backup capacitor.)
- Never use unspecified tester or other measuring device.

1. PERFORM COLLISION DIAGNOSIS

Perform collision diagnosis.Refer to "FOR FRONTAL COLLISION : When SRS is activated in a collision" When SRS Is Activated In A Collision or "FOR FRONTAL COLLISION : When SRS is not activated in a collision" When SRS Is Not Activated In A Collision.
Is collision diagnosis complete?
YES- GO TO 2.
NO- INSPECTION END

2. FINAL INSPECTION

Perform "AIR BAG" Self Diagnostic Result.
Is the inspection result normal?
YES- INSPECTION END
NO- Perform diagnosis of applicable DTC.