The Side Airbag circuit consists of the SRSCM and four Side Airbags (SAB). The SRSCM sets above DTC(s) if it detects short to ground on the SAB circuit.
DTC | Condition | Probable cause |
B1431 B1435 | ● Short to ground between SAB and SRSCM ● Side Airbag (SAB) Malfunction ● SRSCM Malfunction | ● Short to ground circuit on wiring harness ● Side Airbag (SAB) squib ● SRSCM |
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
CHECK SHORT TO GROUND
Measure resistance between the terminal 1 of SAB harness connector and chassis ground.
Specification (resistance) : infinite
Is the measured resistance within specification?
▶ Check the SAB Module.
▶ Repair or replace the wiring harness between the SAB and the SRSCM.
CHECK THE SAB MODULE
Replace the Side Airbag(SAB) with a new one.
● Refer to "Side Airbag(SAB)" 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 Side Airbag(SAB)?
▶Go to next step.
▶Replace SAB module.
CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
