B1330

CIRCUIT DESCRIPTION
The release system for the airbag consists of the SRSCM and two Electronic frontal sensor - one on the left - hand side and one on the right The above DTCs are recorded when the defect or communication error of a Electronic frontal sensor is detected in the Electronic frontal circuit

Wiring Diagram:

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Preparation
1. Disconnect the negative (-) terminal cable from the battery, and wait at least 30 seconds.
2. Remove the DAB module.
3. Disconnect the connectors of the PAB, left and right side airbags, belt pretensioners and satellite sensors.
4. Disconnect the connector of the SRSCM.

CAUTION: Place the DAB with the front surface facing upward.




2. Check the Electronic frontal sensor circuits (Communication error).

[PREPARATION]
Check sensor continuity between sensor SRSCM connector and both electronic frontal sensor connector's high (+) and low (-) sides.
OK: Continuity

[NG]: Repair or replace the harness or the connector between the SRSCM and the Electronic frontal sensor.

[OK]: Go to the next step.

3. Check the Electronic frontal sensor (Defect).

[PREPARATION]
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal cable from the battery, and wait for 30 seconds.
3. Connect the electronic frontal sensor connector.




4. Connect the negative (-) terminal cable to the battery, and wait for 30 seconds.

[CHECK]
1. Turn the ignition switch to ON, and wait for at least 30 seconds.
2. Clear the malfunction code stored in the memory of the Hi-Scan Pro.
3. Turn the ignition switch to LOCK, and wait for 30 seconds.
4. Turn the ignition switch to ON, and wait for 30 seconds.
5. Using the Hi-Scan Pro, check for DTCs.
There is no DTC.

[HINT]
Codes other than these may be output at this time, but they are not relevant to this check.

[NG]: Replace the Electronic frontal sensor.

[OK]: From the results of the above inspection, the malfunctioning part can now be considered normal.