Description
Dtc b1786 is output when the occupant classification ecu receives a collision detection signal sent by the front occupant classification sensor rh when an accident occurs.
Dtc b1786 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 b1786 can be cleared by performing the zero point calibration and sensitivity check.
Therefore, when dtc b1786 is output, first perform the zero point calibration and sensitivity check.
Wiring diagram
Inspection procedure
Ok: completed is displayed.
Standard value: 27 to 33 kg (59.52 To 72.75 Lb)
Hint:
First clear dtcs stored in the occupant classification ecu and then in the center airbag sensor.
Ok: dtc b1786 is not output.
Hint:
Dtcs other than dtc b1786 may be output at this time, but they are not related to this check.
Hint:
Perform the inspection using parts from a normal vehicle if possible.
Ok: completed is displayed.
Standard value: 27 to 33 kg (59.52 To 72.75 Lb)
Hint:
First clear dtcs stored in the occupant classification ecu and then in the center airbag sensor.
Ok: dtc b1786 is not output.
Hint:
Dtcs other than dtc b1786 may be output at this time, but they are not related to this check.
Ok: completed is displayed.
Standard value: 27 to 33 kg (59.52 To 72.75 Lb)
End
Front airbag sensor rh circuit malfunction
Description
The front airbag sensor rh consists of the diagnostic circuit, the frontal
deceleration sensor, etc.
If the center airbag sensor assembly receives signals from the frontal
deceleration sensor, it determines
whether or not the srs should be activated.
Dtc b1610/13 is recor ...
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove front seat track bracket outer
cover lh (see page se-11)
Remove fr ...
Refueling
Vehicle features and
options
This chapter describes all standard, country-specific
and optional features offered with the series.
It also describes features and functions that are
not necessarily available in your vehicle, e.g., due
to the selected options or country versions. This
also applies to ...