B1354

DTC B1354 (1ST STAGE) PAB SHORT TO GROUND

DTC B1487 (2ND STAGE) PAB SHORT TO GROUND

DTC DESCRIPTION
The Passenger Airbag circuit consists of the SRSCM and the Passenger Airbag (PAB) which has two squib circuits.
The SRSCM sets above DTC(s) if it detects short to ground on the PAB circuit.

DTC Detecting Condition:

Schematic Diagram:

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 SHORT TO GROUND
1. Measure resistance between the terminal 4 of PAB harness connector and chassis ground. (PAB stage #1)




2. Measure resistance between the terminal 1 of PAB harness connector and chassis ground. (PAB stage #2)

specification (resistance) : infinite

Is the measured resistance within specification?

YES - Check the PAB Module.

NO - Repair or replace the wiring harness between the PAB and the SRSCM.

3. CHECK THE PAB MODULE
1. Replace the Passenger Airbag (PAB) with a new one.
2. Install the DAB module and connect the DAB connector.
3. Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
4. Connect the SRSCM connector.
5. Connect the negative (-) terminal to the battery.
6. Connect a Hi-Scan (Pro) to the data link connector.
7. Turn the ignition switch to ON and check the vehicle again.

Does Hi-Scan (Pro) indicate any DTC related to PAB?

YES - Go to next step.

NO - Replace PAB module.

4. 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).