Toyota RAV4 manuals

Toyota RAV4 Service Manual: Check mode procedure

Hint:

Intelligent tester only: compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode.

Notice:

All the stored dtcs and freeze frame data are erased if:

  1. The ecm is changed from normal mode to check mode or vice versa;
  2. Or  the ignition switch is turned from on to acc or off while in check mode. Before changing modes, always check and make a note of any dtcs and freeze frame data.
  1. Check mode procedure (using intelligent tester)


  1. Check and ensure the following conditions:
  1. Battery positive voltage 11 v or more.
  2. Throttle valve fully closed.
  3. Transmission in the p or n position.
  4. A/c switch off.
  1. Turn the ignition switch off.
  2. Connect the intelligent tester to the dlc3.
  3. Turn the ignition switch on.
  4. Turn the tester on.
  5. Select the following menu items: diagnosis / enhanced obd ii/ check mode.
  6. Switch the ecm from normal mode to check mode.

  7. Make sure the mil flashes as shown in the illustration.
  8. Start the engine.
  9. Make sure the mil turns off.
  10. Simulate the conditions of the malfunction described by the customer.
  11. Check dtcs and freeze frame data using the tester.
Freeze frame data
Description Freeze frame data records the engine conditions (fuel system, calculated load, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc.) When a malfunction is dete ...

Fail-safe chart
If any of the following dtcs are set, the ecm enters fail-safe mode to allow the vehicle to be driven temporarily. Hint: *: The vehicle can be driven slowly when the accelerator pedal is depre ...

Other materials:

Engine coolant temperature circuit
Description A thermistor, whose resistance value varies according to the ect, is built into the engine coolant temperature (ect) sensor. The structure of the sensor and its connection to the ecm are the same as those of the intake air temperature (iat) sensor. Hint: When any of dtcs ...

Registering a bluetooth® phone for the first time
To use the hands-free system, it is necessary to register a bluetooth® phone with the system. Once the phone has been registered, it is possible to use the hands-free system. For details about registering a bluetooth® device Turn the bluetooth® connection setting of your cellular phon ...

Curtain shield airbag assembly
Components On-vehicle inspection Check curtain shield airbag assembly (vehicle not involved in collision) Perform a diagnostic system check (see page rs- 49). With the curtain shield airbag assembly installed on the vehicle, perform a visual check. If any of the defects ...

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