Inspection Procedure
- PREPARATION
- Turn the ignition switch to LOCK.
- Disconnect the negative (-) terminal from the battery and wait for at least 3 minutes.
- Remove the DAB module and disconnect the DAB connector.
- Disconnect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.
- Disconnect the SRSCM connector.
- CHECK FIS CIRCUIT
- Disconnect the battery, wait 3 minutes.
- Disconnect the FIS and SRSCM.
- Measure the resistance between terminal 1 of the FIS harness connector and terminal A 23 (21) of SRSCM harness connector.
- Measure the resistance between terminal 2 of the FIS harness connector and terminal A 22 (20) of SRSCM harness connector.
specification (resistance) : below 1 Ω
Is the measured resistance within specification?
YES
- Check Front Impact Sensor.
NO
- Repair or replace the wiring harness between the FIS and the SRSCM.
- CHECK FRONT IMPACT SENSOR
- Replace the front impact sensor (FIS) with a new one.
•Refer to "FRONT IMPACT SENSOR (FIS) ".
- Install the DAB module and connect the DAB connector.
- Connect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.
- Connect the SRSCM connector.
- Connect the negative (-) terminal 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 FIS?
YES
- Go to next step.
NO
- Replace the Front Impact Sensor (FIS) .
- Replace the front impact sensor (FIS) with a new one.
- CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
- Install the DAB module and connect the DAB connector.
- Connect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.
- Connect the SRSCM connector.
- Connect the negative (-) terminal to the battery.
- Connect a Hi-Scan (Pro) to the data link connector
- Turn the ignition switch to ON.
- Clear the DTC stored in the SRSCM memory with the Hi-Scan (Pro) .
- Turn the ignition switch to LOCK and wait for at least 30 seconds.
- Turn the ignition switch to ON and wait for at least 30 seconds.
- 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) .