Toyota RAV4 (XA40) 2013-2018 Service Manual: Power steering ecu communication stop mode
Description
Wiring diagram
Inspection procedure
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 system and light reminder warning system are not in operation.
- Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the ignition switch, any switches or 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 switches or any doors triggers related ecu and sensor communication with the can, which causes resistance variation.
- Check can bus line for disconnection (power steering ecu main wire)
- Disconnect the e18 power steering ecu connector.
- Measure the resistance of the wire harness side connector.
Standard resistance 
- Check wire harness (power steering ecu - battery and body ground)
- Disconnect the a1 and e18 power steering ecu connectors.
- Measure the resistance of the wire harness side connector.
Standard resistance 
- Measure the voltage of the wire harness side connectors.
Standard voltage 
Replace power steering ecu
Air conditioning amplifier communication stop mode
Description
Wiring diagram
Inspection procedure
Notice:
Turn the ignition switch off before measuring the resistances
of the main wire and the branch
wire.
After the ignition ...
Steering angle sensor communication stop mode
Description
Wiring diagram
Inspection procedure
Notice:
Turn the ignition switch off before measuring the resistances of the
main wire and the branch
wire.
After the ignition swi ...
Other materials:
Multiplex communication circuit
Description
The air conditioning amplifier communicates data with the ecm and combination
meter through the can
communication system.
Wiring diagram
Inspection procedure
Check dtc
Clear the dtc (see page ac-31).
Read the dtc (see page ac-31).
Result
Go to can c ...
When towing active torque control 4wd vehicles
Use one of the methods shown below to tow the
vehicle.
If the vehicle has trouble in the chassis and drivetrain,
use method 1 (flat bed truck).
Notice:
Do not use any towing method other than those
shown above.
For example, the towing methods shown below are
dangerous or dama ...
Folding the mirrors
Push the mirror back in the direction
of the vehicle’s rear.
Mirror angle can be adjusted when
Vehicles without a smart key system
The engine switch is in the “acc” or “on” position.
Vehicles with a smart key system
The engine switch is in accessory or ignition on mode. ...
