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.
Trailer Tongue Weight
A recommended tongue
weight varies in accordance
with the types of trailers or
towing as described below.
To ensure the recommended
values shown below, the
trailer must be loaded by
referring to the following
instructions.
Tongue Weight
The gross trailer weight should be
distribut ...
Fog light relay
On-vehicle inspection
Inspect front fog light relay
Remove the front fog relay from the no. 6 Relay
block.
Measure the resistance of the relay.
Standard resistance
If the result is not as specified, replace the relay. ...
Side doors
The vehicle can be locked
and unlocked using the
entry function, wireless
remote control, door lock
switches, key or inside lock
buttons.
Unlocking and locking the
doors from the outside
â– Using the entry function
(vehicles with smart key
system)
Carry the electronic key to
enable this function.
...