DTC B1785 Front Occupant Classification Sensor LH Collision Detection
DESCRIPTION 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".
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ZERO POINT CALIBRATION
OK: "COMPLETED" is displayed.
2 PERFORM SENSITIVITY CHECK
Standard value: 27 to 33 kg (59.52 to 72.75 lb)
3 CHECK DTC
OK: DTC B1785 is not output.
HINT: Codes other than DTC B1785 may be output at this time, but they are not related to this check.
4 REPLACE FRONT SEAT ASSEMBLY RH
HINT: Perform the inspection using parts from a normal vehicle if possible.
5 PERFORM ZERO POINT CALIBRATION
OK: "COMPLETED" is displayed
6 PERFORM SENSITIVITY CHECK
Standard value: 27 to 33 kg (59.52 to 72.75 lb)
7 CHECK DTC
HINT: First clear DTCs stored in the occupant classification ECU and then in the center airbag sensor assembly.
OK: DTC B1785 is not output.
HINT: Codes other than DTC B1785 may be output at this time, but they are not related to this check.
8 REPLACE OCCUPANT CLASSIFICATION ECU
9 PERFORM ZERO POINT CALIBRATION
OK: "COMPLETED" is displayed.
10 PERFORM SENSITIVITY CHECK
Standard value: 27 to 33 kg (59.52 to 72.75 lb)
END
Dtc check / clear
1. DTC CHECK (SENSOR CHECK)
(a) After the indicator check is completed, the system
enters the DTC check mode automatically.
(b) Read the codes displayed on the panel. Refer to the
list of codes (See page AC-19) when reading the
codes. (Trouble codes are output at the temperature
display. ...
Distance Control ECU Malfunction
DTC P1617 Distance Control ECU Malfunction
DESCRIPTION
In the dynamic laser cruise control system, the ECM and the distance control
ECU communicate with one
another to control the system based on some designation information. If the
designation information of the
ECM and distance control ECU ...
DVD Error/ Excess Current/ Tray Insertion / Ejection Error
DTC 44-44 DVD Error
DTC 44-48 Excess Current
DTC 44-50 Tray Insertion / Ejection Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-44
Operation error in the DVD mechanism.
Television display assembly
44-48
Excess current is ...