Restraint Troubleshooting

B1378

B1379

B1382

B1383

DTC Description

The Side Airbag circuit consists of the SRSCM and two Side Airbags (SAB). The SRSCM sets above DTC(s) if it detects
that the resistance of SAB squib is too high or low.

DTC Detecting Condition






Specification

SAB resistance : 1.6 ~ 4.7 Ohms

Schematic Diagram






Terminal & Connector Inspection
Refer to the DESCRIPTION in this TROUBLESHOOTING part.

Inspection Procedure

1. PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING part.

2. CHECK SAB RESISTANCE

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

(1) Connect the Dummy and the Dummy Adapter on SAB harness connector.
- Refer to "SPECIAL SERVICE TOOL" section in this SERVICE MANUAL for the SST No. of Dummy and Dummy
Adapter.
(2) Measure resistance between the terminal 15(14) and 16(13) of SRSCM harness connector(B).

Specification (resistance) : 1.6 ~ 4.7 Ohms






(3) Is the measured resistance within specification?
Yes
- Replace the Side Airbag(SAB) module.
No
- Check open circuit.

3. CHECK OPEN CIRCUIT
(1) Measure resistance between the terminal 2 of SAB harness connector and the terminal 15(14) of SRSCM harness connector(B).
(2) Measure resistance between the terminal 1 of SAB harness connector and the terminal 16(13) of SRSCM harness connector(B).

Specification (resistance) : below 1 Ohm






(3) Is the measured resistance within specification?
Yes
- Check short circuit.
No
- Repair or replace the wiring harness between the SAB and the SRSCM.

4. CHECK SHORT CIRCUIT
(1) Measure resistance between the terminal 1 and 2 of SAB harness connector.

Specification (resistance) : infinite






(2) Is the measured resistance within specification?
Yes
- Go to next step.
No
- Repair or replace the wiring harness between the SAB and the SRSCM.

5. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING part.