Toyota RAV4 (XA40) 2013-2018 Service Manual: 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 vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
Hint:
Operating the ignition switch, any other switches or the doors triggers related ecu and sensor communication with the can, which causes resistance variation.
- Junction connector
- No. 1 Junction connector
- No. 2 Junction connector
- No. 3 Junction connector
- No. 4 Junction connector
Hint:
*: For 4wd
- Check dlc3
- Measure the resistance of the connector.
- Check abs and traction actuator (skid control ecu)
- Disconnect the a19 ecu connector.
- Measure the resistance of the wire harness side connector.
- Check steering angle sensor
- Disconnect the e11 sensor connector.
- Measure the resistance of the wire harness side connector.
- Check yaw rate sensor
- Disconnect the k6 sensor connector.
- Measure the resistance of the wire harness side connector.
- Check air conditioning amplifier (for automatic air conditioning system)
- Disconnect the e37 amplifier connector.
- Measure the resistance of the wire harness side connector.
- Check air conditioning amplifier (for manual air conditioning system)
- Disconnect the e36 amplifier connector.
- Measure the resistance of the wire harness side connector.
- Check ecm
- Disconnect the a9 and b30 ecm connectors.
- Measure the resistance of the wire harness side connectors.
Hint:
*1: For 2az-fe
*2: For 2gr-fe
- Check center airbag sensor assembly
- Disconnect the e45 sensor connector.
- Measure the resistance of the wire harness side connectors.
- Check power steering ecu
- Disconnect the a1 and e18 ecu connectors.
- Measure the resistance of the wire harness side connectors.
- Check combination meter ecu
- Disconnect the e19 ecu connector.
- Measure the resistance of the wire harness side connector.
- Check instrument panel junction block (main body ecu)
- Disconnect the 1b and 1e junction block connectors.
- Disconnect the e17 ecu connector.
- Measure the resistance of the wire harness side connectors.
- Check 4wd control ecu (for 4wd)
- Disconnect the e57 ecu connector.
- Measure the resistance of the wire harness side connector.
Terminals of ecu (2005/11-2006/01)
Notice:
Turn the ignition switch off before measuring the
resistances of the main wire and the branch wire.
After the ignition switch is turned off, check that the
key reminder warning syste ...
Diagnosis system
Bus check
Select "bus check" from the "obd / mobd
menu" screen.
Hint:
The ecus and sensors that are properly connected
to the can communication system can be di ...
Other materials:
Precaution
Tire pressure warning system precaution
When the tire pressure warning light turns on,
immediately check the tire pressure of the tire and
adjust it to the specified value. (When the tire
pressure warning light circuit is open, the tire
pressure warning light flashes for 1 minut ...
Snow mode switch (AWD
vehicles)
Snow mode can be selected
to suit the conditions when
driving on slippery road surfaces,
such as on snow.
System operation
â– Dynamic Torque Control
AWD vehicles
Press the snow mode switch.
When the switch is pressed, the
system switches to snow mode and
the snow mode indicator illuminates
on the ...
On-vehicle inspection
Connect intelligent tester
Connect the intelligent tester to the dlc3.
Start the engine and idle it.
Select the active test mode on the intelligent tester.
Hint:
Please refer to the intelligent tester operator's
manual for further details.
Check actuator motor operation
...
