The Driver Airbag circuit consists of the SRSCM, Clockspring and the Driver Airbag (DAB). The SRSCM sets above DTC(s) if it detects short to battery line on the DAB circuit.
DTC | Condition | Probable cause |
B1349 | ● Short to battery line between DAB and clockspring ● Short to battery line between clockspring and SRSCM ● Driver Airbag (DAB) Malfunction ● Clockspring Malfunction ● SRSCM Malfunction | ● Short to battery line on wiring harness ● Driver Airbag (DAB) squib ● Clockspring ● SRSCM |
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
CHECK SHORT TO BATTERY LINE
Connect the battery negative cable to the battery.
Turn the ignition switch to ON.
Measure voltage between the terminal 2 of DAB harness connector and chassis ground.
Specification (voltage) : Approximately 0 V
Is the measured voltage within specification?
▶Check the DAB module.
▶ Repair or replace the wiring harness between the DAB and the clockspring or between the clockspring and the SRSCM.
CHECK THE DAB MODULE
Replace the Driver Airbag(DAB) with a new one.
● Refer to "Driver Airbag(DAB)" section in this SERVICE MANUAL.
Install the DAB module and connect the DAB connector.
Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
Connect the SRSCM connector.
Connect the battery negative cable to the battery.
Connect a Hi-Scan(Pro) to the data link connector.
Turn the ignition switch to ON and check the vehicle again.
Does Hi-Scan (Pro) indicate any DTC related to DAB?
▶Check the clockspring.
▶Replace the Driver Airbag(DAB).
CHECK THE CLOCKSPRING
Check the clockspring.
Is the clockspring normal?
▶ Go to next step.
▶ Replace the clockspring.
CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
