A large number of ecu controlled systems are used in the rav4. In general, ecu controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ecu controlled system's circuits one by one. An adequate understanding of the system and a basic knowledge of electricity is enough to perform effective troubleshooting, accurate diagnoses and necessary repairs.
For using intelligent tester

Connect the cable of the intelligent tester to the dlc3, turn the ignition switch on and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.
* If communication is normal when the tester is connected to another vehicle, inspect the dlc3 of the original vehicle.
* If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the service department listed in the tester's instruction manual.
Key lock-in prevention function does not work properly
Description
When the key is in the ignition key cylinder or the door courtesy light on
signal is output to the main body
ecu, performing the door lock operation with the lock switch does not lock the
door.
Wiring diagram
Inspection procedure
Read value of intelligent tester (unlock w ...
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. ...
Throttle actuator control throttle body range / performance
Description
The electronic throttle control system (etcs) is composed of the throttle
actuator, throttle position (tp)
sensor, accelerator pedal position (app) sensor, and ecm. The ecm operates the
throttle actuator to
regulate the throttle valve in response to driver inputs. The tp senso ...