B1379
DTC B1378 DSAB RESISTANCE TOO HIGHDTC B1379 DSAB RESISTANCE TOO LOW
DTC B1382 PSAB RESISTANCE TOO HIGH
DTC B1383 PSAB RESISTANCE TOO LOW
DTC DESCRIPTION
The Side Airbag circuit consists of the SRSCM and two Side Airbag (SAB).
The SRSCM sets above DTC(s) if it detects that the resistance of SAB squib is too high or low.
DTC Detecting Condition:
Schematic Diagram:
SPECIFICATION
SAB resistance : 1.8 ≤ R ≤ 2.6 ohms
TERMINAL & CONNECTOR INSPECTION
1. Visually inspect all connectors related to the affected circuit for damage and secure connection.
2. Inspect terminals for damage and corrosion.
CAUTION: Avoid damaging connectors during the inspection process.
3. Are any problems found?
NO - Go to next step.
YES - After repairing the trouble part, check whether DTC occurs or not.
INSPECTION PROCEDURE
1. PREPARATION
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal from the battery and wait for at least 3 minutes.
3. Remove the DAB module and disconnect the DAB connector.
4. Disconnect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
5. Disconnect the SRSCM connector.
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" 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).
SAB resistance : 1.8 ≤ R ≤ 2.6 ohms
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 1 of SAB harness connector and the terminal 15 (14) of SRSCM harness connector (B).
2. Measure resistance between the terminal 2 of SAB harness connector and the terminal 16 (13) of SRSCM harness connector (B).
Specification (resistance) : below 1 ohm
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
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
1. Install the DAB module and connect the DAB connector.
2. Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
3. Connect the SRSCM connector.
4. Connect the negative (-) terminal to the battery.
5. Connect a Hi-Scan (Pro) to the data link connector.
6. Turn the ignition switch to ON.
7. Clear the DTC stored in the SRSCM memory with the Hi-Scan (Pro).
8. Turn the ignition switch to LOCK and wait for at least 30 seconds.
9. Turn the ignition switch to ON and wait for at least 30 seconds.
10. Check the vehicle again with the Hi-Scan (Pro).
Does the above DTC(s) go off?
YES - Problem is intermittent or was repaired and SRSCM memory was not cleared.
NO - Replace the SRSCM with a new one, and then check the vehicle again. At this time, if the vehicle normally operates with a new SRSCM, the fault may be the SRSCM (Replace SRSCM).