Toyota RAV4 (XA40) 2013-2018 Service Manual: Integration relay
On-vehicle inspection
- 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.
- Inspect integration relay
Notice:
- The efi relay is built into the integration relay (unit a: efi main).
- Some relays are built into the integration relay.
The integration relay cannot be disassembled. If there is a malfunction in the circuit of the integration relay, replace the integration relay.
- Using a screwdriver, detach the 2 claws and disconnect the integration relay from the no. 1 Engine room junction block.
Hint:
Tape the screwdriver tip before use.
- Disconnect the 3 connectors from the integration relay.
- Inspect the efi relay.
- Check the resistance of the efi main fuse.
If the result is not as specified, replace the efi main fuse.
- Measure the resistance of the integration relay.
Standard resistance 
If the result is not as specified, replace the integration relay.
- Connect cable to negative battery terminal
Installation
Install knock sensor
Install the sensor with the nut.
Torque: 20 n*m (205 kgf*cm, 15 ft.*Lbf)
Notice:
Make sure that the knock sensor is in the
correct position.
Connect the sen ...
Ig1 relay
On-vehicle inspection
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airb ...
Other materials:
Check 4wd control ecu (for 4wd)
Notice:
Turn the ignition switch off before measuring the
resistances of the main wire and branch wire.
After the ignition switch is turned off, check that the
key reminder warning system and light reminder
warning system are not in operation.
Before measuring the resistance, leave the ...
Steering angle sensor circuit malfunction
Description
The steering sensor signal is sent to the skid control ecu via the can
communication system. When
there is a malfunction in the can communication system, it is detected by the
steering sensor zero point
malfunction diagnostic function.
Wiring diagram
Inspection proce ...
Terminals of ecu
Check tire pressure warning ecu
Disconnect the e56 ecu connector.
Measure the voltage and resistance of the wire
harness side connector.
If the result is not as specified, there may be a
malfunction on the wire harness side.
Reconnect the e56 ecu connector.
Measure the ...
