B1787

DTC B1787 OCCUPANT CLASSIFICATION SENSOR REAR LH COLLISION DETECTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

DTC B1787 is output when the occupant classification ECU receives a collision detection signal sent by the occupant classification sensor rear LH if an accident occurs.

DTC B1787 is also output when the front RH seat assembly 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 B1787 can be cleared by "Zero point calibration" and "Sensitivity check".

Therefore, if DTC B1787 is output, first perform "Zero point calibration" and "Sensitivity check".

HINT: When DTC B1650/32 is detected as a result of troubleshooting for the supplemental restraint system, perform troubleshooting for DTC B1787 of the occupant classification system.

Wiring Diagram:

Step 1-2:

Step 3-6:

Step 7-10:

INSPECTION PROCEDURE