Toyota RAV4 (XA40) 2013-2018 Service Manual: Vacuum switching valve
Components
Removal
- Disconnect cable from negative battery terminal
Caution:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
- Remove purge vsv
- Disconnect the purge vsv connector.
- Disconnect the wire harness clamp.
- Disconnect the 2 purge line hoses from the purge vsv.
- Remove the purge vsv from the air cleaner hose.
Inspection
- Inspect purge vsv
- Measure the resistance of the purge vsv.
Standard resistance 
If the result is not as specified, replace the purge vsv.
- Check the operation of the purge vsv.
- Check that air does not flow from port e to port f.
- Apply battery voltage across terminals.
- Check that air flows from port e to port f.
If the result is not as specified, replace the purge vsv.
Installation
- Install purge vsv
- Install the purge vsv onto the air cleaner hose.
- Connect the 2 purge line hoses to the purge vsv.
- Connect the wire harness clamp.
- Connect the purge vsv connector.
- Connect cable to negative battery terminal
Canister
Components
removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent ai ...
Ventilation valve
Components
Removal
Remove no. 1 Engine cover (see page em-22)
Remove ventilation valve sub-assembly
Disconnect the ventilation hose from the ventilation
valve.
Using a ...
Other materials:
Center airbag sensor assembly communication circuit malfunction
Description
The center airbag sensor communication circuit consists of the occupant
classification ecu and the
center airbag sensor.
Dtc b1790 is recorded when a malfunction is detected in the center airbag sensor
communication circuit.
Wiring diagram
Inspection procedure
Hin ...
Problem symptoms table
Hint:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "suspected area"
column of the table. Check each symptom by checking the
suspected areas in the order they are listed. Re ...
Terminals of ecu
Check instrument panel junction block (main body ecu)
Disconnect the ib and ie junction block connectors.
Measure the voltage and resistance of the wire
harness side connectors.
Reconnect the ib and ie junction block connector.
Measure the voltage of the wire harness ...
