B1346

DTC B1346 - DAB Resistance Too High (R > 6.7 ohm)




CIRCUIT DESCRIPTION
The DAB squib circuit consists of the SRSCM, clockspring, DAB. If it causes the airbag to deploy when the airbag deployment conditions are satisfied.
The above DTCs are 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 DAB resistance.

PREPARATION
Release airbag activation prevention mechanism on SRSCM side of airbag squib side.
Connect the dummy (0957A-38200) to clockspring side connector.

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

CHECK: Measure the resistance between DAB high (+) and low (-).

1.8 ohm < R < 3.4 ohm

NG: Go to step "4".

OK: Go to step "3".

3. Check 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 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 Scan Tool, check DTC.

NOTE: DTC is not output.

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

NG: Replace DAB.

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




4. Check clockspring.

PREPARATION
Disconnect connector between SRSCM clockspring, and connect the dummy connector (0957A-38200) to clockspring side connector.

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

CHECK: Measure the resistance between DAB high (+) and low (-).

1.8 ohm < R < 3.4 ohm

NG: Replace clockspring.

OK: Repair or replace the harness between SRSCM and clockspring.