Toyota RAV4 (XA40) 2013-2018 Service Manual: Driver side - side airbag sensor circuit malfunction
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 deceleration sensor, it determines whether or not the srs should be activated.
Dtc b1620/21 is set when a malfunction is detected in the side airbag sensor lh circuit.
Wiring diagram
Inspection procedure
- Check side airbag sensor lh
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Interchange the side airbag sensor rh and 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 the dtcs (see page rs-49).
Result 
Dtcs other than dtc b1620/21 and b1625/22 may be output at this time, but they are not related to this check.
Use simulation method to check
Front airbag sensor lh circuit malfunction
Description
The front airbag sensor lh consists of the diagnostic circuit, the frontal
deceleration sensor, etc.
If the center airbag sensor receives signals from the frontal deceleration
sens ...
Lost communication with driver side - side airbag sensor assembly
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 ...
Other materials:
Parking Support Brake
function (rear-crossing
vehicles)
If a rear radar sensor detects a vehicle approaching from the
right or left at the rear of the vehicle and the system determines
that the possibility of a collision is high, this function
will perform brake control to reduce the likelihood of an
impact with the approaching vehicle.
Examples of funct ...
Rear bumper
Components
Removal
Remove rear bumper cover
Remove the 9 screws and 7 clips.
Put protective tape under the quarter panel.
Detach the 12 claws and remove the bumper cover.
Remove rear bumper protector
Hint:
When removing the bumper protector, heat the bumper
prot ...
Registration
Hint:
The key has 2 codes: the key code (immobiliser code) and
the wireless code (recognition code). Both of these codes
need to be registered. For wireless code registration
procedures, refer to the following procedures (see page dl-
46). For key code registration procedures, refer to the
pro ...
