Toyota RAV4 manuals

Toyota RAV4 Service Manual: Diagnosis system

  1. Description

The ecm controls the function of cruise control on this vehicle. Data of the cruise control or dtc can be read from the dlc3 of the vehicle. When trouble occurs with cruise control, check that the cruise main indicator does not come on but dtc inspection is performed.

Therefore, when there seems to be a problem with the cruise control, use the intelligent tester (with can vim) or sst to check and troubleshoot it.

  1. Check dlc3

Toyota RAV4. Check dlc3


  1. The ecm uses iso 15765-4 for communication.

    The terminal arrangement of the dlc3 complies with sae j1962 and matches the iso 15765-4 format.

Notice:

*: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, other switches or doors.

If the result is not as specified, the dlc3 may have a malfunction. Repair or replace the harness and connector.

Toyota RAV4. Check dlc3


Hint:

Connect the cable of the intelligent tester (with can vim) 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.

  1. Check indicator

Toyota RAV4. Check indicator


  1. Turn the ignition switch on.
  2. Check that the cruise main indicator light illuminates when the cruise control main switch is turned on, and that the indicator light goes off when the main switch is turned off.

Hint:

Toyota RAV4. Check indicator


Terminals of ecm
Check ecm Disconnect the a9 and b30 connectors. Measure the voltage and resistance of the wire harness side connectors. If the result is not as specified, there may be a malfu ...

Dtc check / clear
Check dtc (using intelligent tester) Connect the intelligent tester (with can vim) to the dlc3. Turn the ignition switch on. Read the dtcs by following the directions on the teste ...

Other materials:

Starter relay circuit high
Description While the engine is being cranked, the positive battery voltage is applied to terminal sta of the ecm. If the ecm detects the starter control (sta) signal while the vehicle is being driven, it determines that there is a malfunction in the sta circuit. The ecm then illuminates ...

Driver side - side airbag sensor circuit malfunction
Description The side airbag sensor lh consists of part including the diagnostic circuit and the lateral deceleration sensor. When the center airbag sensor receives signals from the lateral deceleration sensor, it determines whether or not the srs should be activated. Dtc b1620/21 is ...

Back-up power source circuit
Description This is the back-up power source circuit for the air conditioning amplifier. Power is supplied even when the ignition switch is turned off and is used for functions such as the diagnostic trouble code memory. wiring diagram Inspection procedure Inspect fuse (ecu-b2) ...

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