B1785

DTC B1785 OCCUPANT CLASSIFICATION SENSOR FRONT LH COLLISION DETECTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

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

DTC B1785 is also output when the front seat w/ adjuster frame assy 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".

Wiring Diagram:

Step 1-2:

Step 3-6:

Step 7-10:

INSPECTION PROCEDURE