B1785

DTC B1785 Front Occupant Classification Sensor LH Collision Detection

DESCRIPTION

DTC Detecting Condition:

DTC B1785 is output when the occupant classification ECU receives a collision detection signal sent by the front occupant classification sensor LH if an accident occurs.

DTC B1785 is also output when the front seat assembly RH is subjected to a strong impact, even if an actual accident does not occur.

However, when the occupant classification ECU outputs a collision detection signal, even if the vehicle is not in a collision, DTC B1785 can be cleared by "zero point calibration" and "sensitivity check".

Therefore, if DTC B1785 is output, first perform "zero point calibration" and "sensitivity check".

HINT: When DTC B1150/23 is detected as a result of troubleshooting for "AIRBAG SYSTEM", check the DTCs stored in the occupant classification ECU. When DTC B1785 is output, perform troubleshooting for the DTC.

Wiring Diagram:

Step 1-2:

Step 3-6:

Step 6(Continued)-10:

Step 10(Continued):

INSPECTION PROCEDURE