B1347

CIRCUIT DESCRIPTION
The DAB squib circuit consists of the SRSCM, clock spring, DAB. If it causes the airbag to deploy when the airbag deployment conditions are satisfied.

The DTC is recorded when DAB resistance too high or low is detected in the DAB squib circuit.




WIRING DIAGRAM

INSPECTION PROCEDURE




1. Preparation.
1. Disconnect negative (-) terminal cable from the battery, and wait at least 30 seconds.
2. Remove the DAB module.
3. Disconnect connectors of PAB left and right side airbag, belt pretensioner and satellite sensor.
4. Disconnect connector of SRSCM.

CAUTION: Store the DAB with the front surface facing upward.




2. Check the DAB resistance.

[PREPARATION]
Release airbag activation prevention mechanism on the SRSCM side of airbag squib side.

Connect the dummy (0957A-38200) to clock spring side connector.

NOTE: Before check the resistance, you have to insert shorting bar insert plastic attached diagnosis checker into the SRSCM connector.

[CHECK]
Measure the resistance between the DAB high (+) and low (-).
1.8 ohms < R < 3.4 ohms

NG: Go to step "4".

OK: go to Next Step.




3. Check the DAB squib.

[PREPARATION]
1. Turn ignition switch to LOCK.
2. Disconnect negative (-) terminal cable from the battery, and wait at least 30 seconds.
3. Connect the DAB connector.
4. Connect negative (-) terminal cable to the battery, and wait at least 30 seconds.

[CHECK]
1. Turn ignition switch to ON, and wait at least 30 seconds.
2. Clear malfunction code stored in memory with Scan tool.
3. Turn ignition switch to LOCK, and wait at least 30 seconds.
4. Turn ignition switch to ON, and wait at least 30 seconds.
5. Using Hi-Scan Pro, check the DTC.
There is no DTC.

[HINT]
Codes other than these ones may be output at this time, but they are not relevant to this check.

NG: Replace the DAB.

OK: From the result of the above inspection, the malfunctioning part can now be considered normal.




4. Check the Clock spring.

[PREPARATION]
Disconnect connector between SRSCM clock spring, and connect the dummy connector (0957A-38200) to clock spring side connector.

NOTE: Before check the resistance, you have to insert shorting bar insert plastic attached diagnosis checker into the SRSCM connector.

[CHECK)
Measure the resistance between the DAB high (+) and low (-). 1.8 ohms < R < 3.4 ohms

NG: Replace clock spring.

OK: Repair or replace the harness between the SRSCM and the clock spring.