Toyota RAV4 manuals

Toyota RAV4 Service Manual: General information

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

Toyota RAV4. General information


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.

How to troubleshoot ecu controlled systems
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How to proceed with troubleshooting
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Other materials:

Terminals of ecu
Check tire pressure warning ecu Disconnect the e56 ecu connector. Measure the voltage and resistance of the wire harness side connector. If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the e56 ecu connector. Measure the ...

Circuit inspection
A description of the main areas of each circuit inspection is below. Item Description description The major role, operation of the circuit and its component parts are explained. Dtc no., Dtc detection condition, trouble area Indicates the diagnostic trouble cod ...

Check for intermittent problems
Hint: Inspect the vehicle's ecm using check mode. Intermittent problems are easier to detect with the intelligent tester when the ecm is in check mode. In check mode, the ecm uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detec ...

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