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B1346 Driver Airbag Resistance too High (1st stage)

AutoHex Online Help: Hyundai H-1(A1) 2003
CIRCUIT INSPECTION

DTC

B1346 DAB resistance too high (R = 6.7 ?)

B1347 DAB resistance too low (R = 1.06 ?)

CIRCUIT DESCRIPTION

The DAB squib circuit consists of the SRSCM, the clock spring,the DAB. It causes the airbag to deploy when the airbag deployment conditionsare satisfied. The above DTCs are recorded when the DAB circuit is open orthe DAB resistance too high or low is detected in the DAB squib circuit.

DTC Detecting Condition

Trouble Area

Too high or low resistane between DAB high (+) wiring harnessand DAB low (-) wiring harness of squib.

DAB malfunction

Clock spring malfunction

SRSCM malfunction

DAB squib

Clock spring

SRSCM

Wire harness

WIRING DIAGRAM
INSPECTION PROCEDURE

Preparation

Disconnect the negative (-) terminal cable from the battery, andwait at least 30 seconds.

Remove the DAB module.

Disconnect the connectors of the PAB, left and right side airbags,belt pretensioners and satellite sensors.

Disconnect the SRSCM connector.

caution

Place the DAB with the front surface facingupward.

Check the DAB resistance.

[PREPARATION]

Release the airbag activation prevention mechanism on SRSCM side ofairbag squib side. Connect the dummy (0957A-38200) and dummy adapter (0957A-38400)to the clock spring side connector.

caution

Never attempt to measure the circuit resistanceof the airbag module (squib) even if you are using the specified tester.

note

Before checking the resistance, you have toinsert the shorting bar insert plastic that is attached to the diagnosis checkerinto the SRSCM connector.

[CHECK]

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

1.8 ? = R = 3.4 ?

Check the DAB squib.

[PREPARATION]

Turn the ignition switch to LOCK.

Disconnect the negative (-) terminal cable from the battery, andwait for 30 seconds.

Connect the DAB connector.

Connect the negative (-) terminal cable to the battery, and waitfor 30 seconds.

[CHECK]

Turn the ignition switch to ON, and wait for at least 30 seconds.

Clear the malfunction code stored in the memory with the Hi-ScanPro.

Turn the ignition switch to LOCK, and wait for 30 seconds.

Turn the ignition switch to ON, and wait for 30 seconds.

Using Hi-Scan Pro, check the DTC.

There is no DTC.

[HINT]

Codes other than these may be output at this time, but they are notrelevant to this procedure.

Check the clock spring.

[PREPARAION]

Disconnect the connector between the SRSCM clock spring, and connectthe dummy connector (0957A-38200) and dummy adapter (0957A-38400) to the clockspring side connector.

note

Before checking the resistance, you have toinsert the shorting bar insert plastic that is attached to the diagnosis checkerinto the SRSCM connector.

[CHECK]

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

1.8 ? = R = 3.4 ?