B1349

DTC B1349 DRIVER AIRBAG RESISTANCE CIRCUIT SHORT TO BATTERY (1ST STAGE)

DESCRIPTION
The DAB squib circuit consists of the SRSCM, the clock spring and the DAB. It causes the SRS to deploy when the SRS deployment conditions are satisfied. The above DTC is recorded when a short to battery is detected in the DAB squib circuit.

Detecting Condition:

INSPECTION OF CONNECTOR AND TERMINAL
1. Check all the connectors related to the DTC for contact condition visually.
2. Check the connector and the terminal.
1. Check the connector for connection securely.
2. Check the terminal for contact condition, deterioration, erosion and elasticity.

CAUTION: Do not deform the connector for revising contact.

3. Are confirmed trouble on the connector and the terminal?

YES - After repairing the trouble part, check whether DTC occurs or not.

NO - Check the DAB squib circuit.

CHECK DAB SQUIB CIRCUIT
1. Preparation
1. Disconnect the negative (-) terminal cable from the battery and wait 30 seconds.
2. Remove the DAB module.
3. Disconnect the connector of the PAB, SAB, CAB, SIS, FIS and BPT.
4. Disconnect the SRSCM connector.






2. Check DAB squib circuit
For the connector (on the clock spring side) between the clock spring and the DAB, measure the voltage between the DAB high and body ground.






Voltage : 0 V

YES - Check the DAB squib.

NO - Check the clock spring circuit.

CHECK DAB SQUIB
1. Preparation
1. Turn the ignition switch "LOCK".
2. Connect the DAB connector.
3. Connect the SRSCM connector.
4. Connect the negative (-) terminal cable from the battery, and wait for 30 seconds.

2. Check
1. Turn the ignition switch to "ON", and wait for at least 30 seconds.
2. Clear the malfunction code stored in the memory with the HI-Scan Pro.
3. Turn the ignition switch to "LOCK", and wait for at 30 seconds.
4. Turn the ignition switch to "ON", and wait for at 30 seconds.
5. Using Hi-Scan Pro, check the DTC.

NOTE: Codes other than these may be output at this time, but they are not relevant to this procedure.






6. There is no DTC.

YES - From the result of the above inspection, the malfunctioning part can now be considered normal.

NO - Replace the DAB.

CHECK CLOCK SPRING CIRCUIT
1. Disconnect the connector between the SRSCM and the clock spring.
2. Turn the ignition switch to "ON", measure the voltage between the DAB high (+) and body ground.






Voltage: 0 V

YES - Replace the harness between the SRSCM and the clock spring then check the DAB squib circuit.

NO - Replace the clock spring.