B1409

DTC B1409 SATELLITE SENSOR DRIVER COMMUNICATION ERROR

CIRCUIT DESCRIPTION
The release system for the airbag consists of the SRSCM and two satellite 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 satellite sensor is detected in the satellite circuit.

Wiring Diagram:

WIRING DIAGRAM

INSPECTION PROCEDURE
1. Preparation
1. Disconnect 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 airbag,belt pretensioner and satellite sensor.
4. Disconnect the connector of the SRSCM.

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




2. Check sensor Satellite circuits (Communication error).

[PREPARATION]
Check sensor continuity between sensor SRSCM connector and both satellite connector's high (+) and low (-) sides.

OK : Continuity

[NG]-> Repair or replace the harness between the SRSCM and the Satellite sensor.

[OK]->

3. Check the Satellite sensor (Detect).

[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 satellite 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 Satellite sensor.

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