Toyota RAV4 Service Manual: Front passenger side satellite sensor bus initialization incomplete
Description
When the center airbag sensor receives signals from the lateral deceleration
sensor, it determines
whether or not the srs should be activated.
Dtc b1648/82 is recorded when a malfunction is detected in the rear airbag
sensor rh circuit.
Wiring diagram
Inspection procedure
- Check for dtc
- Turn the ignition switch on, and wait for at least 60
seconds.
- Clear the dtcs (see page rs-49).
- Turn the ignition switch off.
- Turn the ignition switch on, and wait for at least 60
seconds.
- Check the dtcs (see page rs-49).
Ok:
dtc b1627/82 is not output.
Dtc b1637/82 is not output.
Hint:
Dtcs other than dtc b1627/82 and b1637/82 may be
output at this time, but they are not related to this check.
- Check connection of connector
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Check that the connectors are properly connected to the
center airbag sensor, rear airbag sensor rh and the side
airbag sensor rh.
Ok:
the connectors are properly connected.
- Check floor wire (open)
- Disconnect the connectors from the center airbag sensor
and the side airbag sensor rh.
- Using a service wire, connect l10-4 (bbr+) and l10-3
(bbr-) of connector c.
Notice:
Do not forcibly insert the service wire into the
terminals of the connector when connecting.
- Measure the resistance of the wire harness side
connector.
Standard resistance
- Check floor wire (short)
- Disconnect the service wire from connector c.
- Measure the resistance of the wire harness side
connector.
Standard resistance
- Check floor wire (to b+)
- Connect the cable to the negative (-) battery terminal,
and wait for at least 2 seconds.
- Turn the ignition switch on.
- Measure the voltage of the wire harness side connector.
Standard voltage
- Check floor wire (to ground)
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Measure the resistance of the wire harness side
connector.
Standard resistance
- Check floor wire (open)
- Disconnect the connectors from the side airbag sensor
rh and the rear airbag sensor rh.
- Using a service wire, connect l12-1 (bcr-) and l12-2
(bcr+) of connector c.
Notice:
Do not forcibly insert the service wire into the
terminals of the connector when connecting.
- Measure the resistance of the wire harness side
connector.
Standard resistance
- Check floor wire (short)
- Disconnect the service wire from connector c.
- Measure the resistance of the wire harness side
connector.
Standard resistance
- Check floor wire (to b+)
- Connect the cable to the negative (-) battery terminal,
and wait for at least 2 seconds.
- Turn the ignition switch on.
- Measure the voltage of the wire harness side connector.
Standard voltage
- Check floor wire (to ground)
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Measure the resistance of the wire harness side
connector.
Standard resistance
- Check side airbag sensor rh
- Connect the connectors to the center airbag sensor.
- interchange the side airbag sensor rh with the side
airbag sensor lh and connect the connectors to them.
- Connect the cable to the negative (-) battery terminal,
and wait for at least 2 seconds.
- Turn the ignition switch on, and wait for at least 60
seconds.
- Clear the dtcs (see page rs-49).
- Turn the ignition switch off.
- Turn the ignition switch on, and wait for at least 60
seconds.
- Check for dtcs (see page rs-49).
Result
Hint:
Dtcs other than dtc b1643/81 or b1648/82 may be
output at this time, but they are not related to this check.
- Check rear airbag sensor rh
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Interchange the rear airbag sensor lh with the rear
airbag sensor rh and connect the connectors to them.
- Connect the cable to the negative (-) battery terminal,
and wait for at least 2 seconds.
- Turn the ignition switch on, and wait for at least 60
seconds.
- Clear the dtcs (see page rs-49).
- Turn the ignition switch off.
- Turn the ignition switch on, and wait for at least 60
seconds.
- Check the dtcs (see page rs-49).
Result
Use simulation method to check
Description
The side airbag sensor lh consists of part including the diagnostic circuit
and the lateral deceleration
sensor.
When the center airbag sensor receives signals from the lateral ...
Description
The occupant classification system circuit consists of the center airbag
sensor and the occupant
classification system.
When the center airbag sensor receives signals from the occup ...
Other materials:
Vehicle speed sensor "A"
description
The speed sensor detects the wheel speed and sends the appropriate signals to
the skid control ecu.
The skid control ecu converts these wheel speed signals into a 4-pulse signal
and outputs it to the ecm
via the combination meter. The ecm determines the vehicle speed based o ...
Disassembly
Remove no. 1 Side defroster nozzle duct
Remove the 3 screws and duct.
Remove no. 2 Side defroster nozzle duct
Remove the 3 screws and duct.
Remove no. 1 Heater to register duct
Remove the screw and duct.
Remove no. 2 Heater to register duct
...
Front seats
Adjustment procedure
Manual seat
Seat position adjustment lever
Seatback angle adjustment
lever
Vertical height adjustment
lever (driver’s side only)
Power seat (driver’s side only)
Seat position adjustment switch
Seatback angle adjustment
switch
seat cushion (f ...