Toyota RAV4 Service Manual: Short in front passenger side squib circuit

Description
The front passenger side squib circuit consists of the center airbag sensor
and the front passenger airbag.
The 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 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 passenger airbag assembly (front passenger side 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 passenger
airbag.
- Connect the white wire side of sst (resistance 2.1 Ù) to
the instrument panel wire connector e.
Caution:
Never connect a tester to the front passenger airbag
(front passenger side 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 b1805, b1806, b1807, b1808 or 52 is not
output.
Hint:
Dtcs other than dtc b1805, b1806, b1807, b1808 or
52 may be output at this time, but they are not related to
this check.

- Check connector
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Disconnect sst from the instrument panel wire.
- Check that the instrument panel wire connectors (on the
front passenger side airbag) are not damaged.
Ok:
lock button is not disengaged, and claw of lock is
not deformed or damaged.

- Check instrument panel wire

- Disconnect the connector from the center airbag sensor.
- 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

- 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


- Check no. 2 Instrument panel wire

- Disconnect the no. 2 Floor wire connector from the floor
wire.
- 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

- 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


Repair or replace instrument panel wire
Description
The driver side squib circuit consists of the center airbag sensor, the
spiral cable and the steering pad.
The circuit instructs the srs to deploy when the deployment conditions ...
Description
The driver side squib 2nd step circuit consists of the center airbag sensor,
the spiral cable and the
steering pad.
The circuit instructs the srs to deploy when the deployment c ...
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On-vehicle inspection
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Connect the intelligent tester to the dlc3.
Turn the ignition switch on.
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Do-it-yourself service
precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
Caution
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
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