Toyota RAV4 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.
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 ...
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:
Cargo and luggage
Take notice of the following information about storage precautions,
cargo capacity and load:
Capacity and distribution
Cargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (total load capacity) ƒ{ (total weight of occupants)
Steps for determining correct load l ...
Input signal circuit abnormal
Description
This dtc expresses the internal abnormalities of the ecm.
Inspection procedure
Check for dtc
Clear the dtc (see page cc-15).
Check for dtc (see page cc-15).
Ok:
dtc is not output.
End ...
Installation
Install ignition switch assembly
Install the ignition switch with the 2 screws.
Install the ignition key cylinder light connector.
Install the ignition switch connector.
Install steering column cover lower
Attach the 4 claws to install the steering column
l ...