Toyota RAV4 manuals

Toyota RAV4 Service Manual: Evaporative emission control system leak detected

Toyota RAV4 Service Manual / 2Az-fe engine mechanical / Sfi system / Diagnostic trouble code chart / Evaporative emission control system leak detected

Toyota RAV4. Evaporative emission control system leak detected


Dtc summary

Toyota RAV4. Dtc summary


Description

The description can be found in the evap (evaporative emission) system (see page es-335).

Inspection procedure

Refer to the evap system (see page es-340).

Monitor description

5 Hours* after the ignition switch is turned off, the leak detection pump creates negative pressure (vacuum) in the evap system. The ecm monitors for leaks and actuator malfunctions based on the evap pressure.

Hint:

*: If the engine coolant temperature is not below 35°c (95°f) 5 hours after the ignition switch is turned off, the monitor check starts 2 hours later. If it is still not below 35°c (95°f) 7 hours after the ignition switch is turned off, the monitor check starts 2.5 Hours later.

Toyota RAV4. Monitor description


Toyota RAV4. Monitor description


*: If only a small amount of fuel is in the fuel tank, it takes longer for the evap pressure to stabilize.

Toyota RAV4. Monitor description


  1. P0455: evap gross leak

In operation c, the leak detection pump creates negative pressure (vacuum) in the evap system and the evap system pressure is measured. If the stabilized system pressure is higher than [second reference pressure x 0.2] (Near atmospheric pressure), the ecm determines that the evap system has a large leakage, illuminates the mil and sets the dtc (2 trip detection logic).

  1. P0456: evap very small leak

In operation c, the leak detection pump creates negative pressure (vacuum) in the evap system and the evap system pressure is measured. If the stabilized system pressure is higher than the second reference pressure, the ecm determines that the evap system has a small leakage, illuminates the mil and sets the dtc (2 trip detection logic).

Toyota RAV4. Monitor description


Monitor strategy

Toyota RAV4. Monitor strategy


Typical enabling conditions

Toyota RAV4. Typical enabling conditions


Toyota RAV4. Typical enabling conditions


Toyota RAV4. Typical enabling conditions


Typical malfunction thresholds

Toyota RAV4. Typical malfunction thresholds


Monitor result

Refer to checking monitor status (see page es-17).

Evaporative emission control system pressure sensor
Dtc summary Hint: The canister pressure sensor is built into the canister pump module. Description The description can be found in the evap (evaporative emission) system (see page es ...

Vehicle speed sensor "A"
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Other materials:

Engine (ignition) switch (vehicles with a smart key system)
Performing the following operations when carrying the electronic key on your person starts the engine or changes engine switch modes. Starting the engine Check that the parking brake is set. Check that the shift lever is set in p. Firmly depress the brake pedal. The smart key system in ...

Basic audio operations
Basic audio operations and functions common to each mode are explained in this section. Operating the audio system Press this knob to turn the audio system on and off, and turn it to adjust the volume. Press this button to eject a disc Insert a disc into the disc slot Press to pa ...

Front wiper motor and link
Components Removal 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 pretensioner activation. Remove front wiper arm head cap Remove the 2 c ...

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