Toyota RAV4 manuals

Toyota RAV4 Service Manual: Air-fuel ratio (a/f) and heated oxygen (ho2) sensor monitors (active air-fuel ratio control type)

Toyota RAV4 Service Manual / 2Az-fe engine mechanical / Sfi system / Readiness monitor drive pattern / Air-fuel ratio (a/f) and heated oxygen (ho2) sensor monitors (active air-fuel ratio control type)

Toyota RAV4. Air-fuel ratio (a/f) and heated oxygen (ho2) sensor monitors (active air-fuel ratio control type)


  1. Preconditions

The monitor will not run unless:

  1. Drive pattern for front a/f sensor and ho2 sensor
  1. Connect the intelligent tester to the dlc3.
  2. Turn the ignition switch on.
  3. Turn the tester on.
  4. Clear dtcs (see page es-35).
  5. Start the engine, and warm it up until the ect reaches 75°c (167°f) or higher.
  6. Drive the vehicle at between 60 km/h (38 mph) and 120 km/h (75 mph) for at least 10 minutes.
  7. Change the transmission to 2nd gear.
  8. Accelerate the vehicle to 64 km/h (40 mph) or more by depressing the accelerator pedal for at least 10 seconds.
  9. Soon after performing step (8) above, release the accelerator pedal for at least 4 seconds without depressing the brake pedal, in order to execute fuelcut control.
  10. Allow the vehicle to decelerate until the vehicle speed declines to less than 10 km/h (6 mph).
  11. Repeat steps from (8) through (10) above at least 3 times in one driving cycle.
  1. Monitor status
  1. Check the readiness monitor status displayed on the tester.
  2. If the status does not switch to compl (complete), make sure that the preconditions have been met, and then perform steps from (5) through (11) in the drive pattern above.
Catalyst monitor (active air-fuel ratio control type)
Preconditions The monitor will not run unless: The mil is off. Drive pattern Connect the intelligent tester to the dlc3. Turn the ignition switch on. Turn the tester on. ...

Air-fuel ratio (a/f) and heated oxygen (ho2) sensor heater monitors (front a/f and rear ho2 sensor type)
Preconditions The monitor will not run unless: The mil is off. Drive pattern Connect the intelligent tester to the dlc3. Turn the ignition switch on. Turn the tester on. ...

Other materials:

Compressor and pulley (for 2gr-fe)
Components Removal Discharge refrigerant from refrigeration system (see page ac-172) Disconnect cable from negative battery terminal Caution: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensione ...

Headlight relay
On-vehicle inspection Remove headlight relay Remove the headlight relay from the engine room no. 2 Relay block. Measure the resistance of the relay. Standard resistance If result is not as specified, replace the relay. ...

Front axle hub bolt
Components Replacement Hint Use the same procedures for the rh side and lh side. The procedures listed below are the lh side. Remove front wheel Remove front disc brake cylinder assembly lh (see page br-40) Remove front disc (see page br-42) Remove front axle hub bolt ...

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