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B1346 Driver Airbag Resistance too High (1st stage)

AutoHex Online Help: Hyundai SONATA(EF) 2002
CIRCUIT INSPECTION

DTC

B1346 DAB resistance too high (R = 6.0?)

B1347 DAB resistance too low (R = 0.9?)

CIRCUIT DESCRIPTION

DTC Detecting Condition

Trouble Area

Too high or low resistane between DAB high (+) wiring harness and 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, and wait 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.

warning

Place the DAB with the front surface facing upward.

Check the DAB resistance.

[PREPARATION]

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

warning

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

note

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

[CHECK]

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

1.6? = R = 4.1?

Check the DAB squib.

Turn the ignition switch to LOCK.

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

Connect the DAB connector.

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

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

Clear the malfunction code stored in the memory with the Hi-Scan Pro.

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 not relevant to this procedure.

Check the clock spring.

[PREPARAION]

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

warning

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

[CHECK]

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

1.6? = R = 4.1?