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.
Inner rear view mirror
Components
Removal
Remove inner rear view mirror assembly
Disengage the 2 claws and separate the inner rear
view mirror cover as shown in the illustration.
Remove the inner rear view mirror as shown in the
illustration.
Installation
Install inner rear view mir ...
Checking monitor status
Perform monitor drive pattern
Connect the intelligent tester to the dlc3.
Turn the ignition switch and the tester on.
Clear the dtcs (see page es-35).
Run the vehicle in accordance with the applicable
drive pattern described in readiness monitor
drive pattern (see page es-19). Do ...
Radiator
Components
On-vehicle inspection
Check radiator reservoir cap subassembly
Measure the valve opening pressure.
If there are water stains or foreign matter on oring
1, clean it with water and finger scouring.
Check that o-ring 1 is not deformed, cracked or
sw ...