Toyota RAV4 Service Manual: Short in front passenger side pretensioner squib circuit
Description
The front passenger side front pretensioner squib circuit consists of the
center airbag sensor and the front
seat outer belt rh.
This circuit instructs the srs to deploy when the deployment conditions are met.
These dtcs are recorded when a malfunction is detected in the front passenger
side front pretensioner
squib circuit.
Wiring diagram
Inspection procedure
Hint:
- Perform the simulation method by selecting the "check mode" (signal
check) with the intelligent
tester (see page rs-52).
- After selecting the "check mode" (signal check), perform the simulation
method by wiggling each
connector of the airbag system or driving the vehicle on a city or rough
road (see page rs-52).
- Check front seat outer belt assembly rh (front passenger side front
pretensioner squib)
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Disconnect the connectors from the front seat outer belt
rh.
- Connect the white wire side of sst to connector c.
Caution:
Never connect a tester to the front seat outer belt rh
(front passenger side front pretensioner squib) for
measurement, as this may lead to a serious injury
due to airbag deployment.
Notice:
- Do not forcibly insert sst into the terminals of the
connector when connecting.
- Insert sst straight into the terminals of the
connector.
Sst 09843-18060
- 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).
Ok:
dtc b1905, b1906, b1907, b1908 or 74 is not
output.
Hint:
Dtcs other than dtc b1905, b1906, b1907, b1908 or
74 may be output at this time, but they are not related to
this check.
- Check con3
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Disconnect sst from connector c.
- Check that the floor wire connector (on the front seat
outer belt rh side) is not damaged.
Ok:
lock button is not disengaged, or the claw of the
lock is not deformed or damaged.
- Check floor wire (front passenger side front pretensioner squib
circuit)
- Disconnect the connectors from the center airbag
sensor.
- Connect the cable to the negative (-) battery terminal,
and wait for at least 2 seconds.
- Measure the voltage of the wire harness side connector.
Standard voltage
- 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
- Release the activation prevention mechanism built into
connector b (see page rs-37).
- Measure the resistance of the wire harness side
connector.
Standard resistance
Replace center airbag sensor assembly
Description
The driver side front pretensioner squib circuit consists of the center
airbag sensor and the front seat
outer belt lh.
This circuit instructs the srs to deploy when the deploym ...
Description
The srs is equipped with a voltage-increase circuit (dc-dc converter) in the
center airbag sensor in
case the source voltage drops.
When the source voltage drops, the voltage-increa ...
Other materials:
Types of child restraints
Child restraint systems are classified into the following 3 types
according to the age and size of the child:
Rear facing „o infant seat/convertible
seat
Forward facing „o convertible
seat
Booster seat
Selecting an appropriate child restraint system
Use a child restraint ...
Front passenger side - side airbag sensor circuit malfunction
Description
The side airbag sensor rh consists of parts 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 b1625/22 i ...
Removal
Hint:
Use the same procedures for the rh side and lh side.
The procedures listed below are for the lh side.
Caution:
Be sure to read the precautionary notices concerning the
srs airbag system before servicing it (see page rs-1).
Disconnect cable from negative battery terminal
Cauti ...