Toyota RAV4 (XA40) 2013-2018 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:
Closing the fuel tank cap
After refueling, turn the fuel tank
cap until you hear a click. Once
the cap is released, it will turn
slightly in the opposite direction.
Caution
When replacing the fuel tank cap
Do not use anything but a genuine toyota fuel tank cap designed for
your
vehicle. Doing so may cause a fire ...
Front console illumination
On-vehicle inspection
Inspect front console illumination
Connect the battery's positive (+) lead to terminal 1
and the negative (-) lead to terminal 2, then check
that the light comes on.
Ok:
light comes on.
If the result is not as specified, replace the front
console illumin ...
Operation flow
Hint:
Perform troubleshooting in accordance with the
procedures below. The following is an outline of basic
troubleshooting procedures. Confirm the troubleshooting
procedures for the circuit you are working on before
beginning troubleshooting.
Ask
the customer about the conditions and en ...