B1381

DTC B1381 DRIVER SIDE AIRBAG RESISTANCE CIRCUIT SHORT TO BATTERY

DTC B1385 PASSENGER SIDE AIRBAG RESISTANCE CIRCUIT SHORT TO BATTERY

DESCRIPTION
The SAB squib circuit consists of the SRSCM and SAB. 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 SAB 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 SAB squib circuit.

CHECK SAB 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 SAB squib circuit
For the connector (on the SRSCM side) between the SRSCM and SAB, measure the voltage between the SAB high (+) and body ground.

Voltage: 0 V

YES - Check the SAB squib.

NO - Replace the harness between the SRSCM and SAB.

CHECK SAB SQUIB
1. Preparation
1. Turn the ignition switch "LOCK".
2. Connect the SAB 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 SAB.