Restraint Troubleshooting

B1328

B1329

B1333

B1334

DTC Description

The detecting system for front crash consists of the SRSCM and two Front Impact Sensors (FIS). The SRSCM sets above DTC(s) if it detects that any FIS is defective or there is communication error between any FIS and the SRSCM.

DTC Detecting Condition






Schematic Diagram






Terminal & Connector Inspection

Inspection Procedure

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

2. CHECK FIS CIRCUIT
(1) Measure resistance between the terminal 1 of FIS harness connector and the terminal A 23(21) of SRSCM harness connector.
(2) Measure resistance between the terminal 2 of FIS harness connector and the terminal A 22(20) of SRSCM harness connector.
Specification (resistance) : below 1 Ohm





(3) Is the measured resistance within specification?
Yes
- Check Front Impact Sensor.
No
- Repair or replace the wiring harness between the FIS and the SRSCM.

3. CHECK FRONT IMPACT SENSOR
(1) Replace the front impact sensor(FIS) with a new one.
- Refer to "Front Impact Sensor(FIS)" section in this SERVICE MANUAL.
(2) Install the DAB module and connect the DAB connector.
(3) Connect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.
(4) Connect the SRSCM connector.
(5) Connect the battery negative cable 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 FIS?
Yes
- Go to next step.
No
- Replace the Front Impact Sensor(FIS).

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