Toyota RAV4 (XA40) 2013-2018 Service Manual: Short in front passenger side squib 2nd step circuit

Description
The front passenger side squib 2nd step 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 2nd step
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 2nd
step)

- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery
terminal, and wait for at least 90 seconds.
- Disconnect the connector from the front passenger
airbag.
- Connect the white wire side of sst to the instrument
panel wire connector e.
Caution:
never connect a tester to the front passenger airbag
(front passenger side squib 2nd step) 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 b1815, b1816, b1817, b1818 or 54 is not
output.
Hint:
Dtcs other than dtc b1815, b1816, b1817, b1818 and
54 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 (resistance 2.1 Ù) 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 Instrument panel wire connector
from the instrument panel 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 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 ...
Description
The driver side - side squib circuit consists of the center airbag sensor and
the front seat side airbag lh.
This circuit instructs the srs to deploy when the deployment conditio ...
Other materials:
If your vehicle overheats
The following may indicate
that your vehicle is overheating.
The engine coolant temperature
gauge shows the red zone or a
loss of engine power is
experienced. (For example,
the vehicle speed does not
increase.)
"Engine Coolant Temp High
Stop in a Safe Place See
Owner's Manual" is shown
on ...
Hitch
Trailer hitch assemblies have different weight capacities. Toyota recommends
the use of toyota hitch/bracket for your vehicle. For details,
contact your toyota dealer.
If you wish to install a trailer hitch, contact your toyota dealer.
Use only a hitch that conforms to the gross trailer weig ...
Crankshaft position sensor "A"
Description
The crankshaft position (ckp) sensor system consists of a ckp sensor plate
and a pickup coil.
The sensor plate has 34 teeth and is installed on the crankshaft. The pickup
coil is made of wound copper
wire, an iron core and magnet. The sensor plate rotates and, as each tooth ...