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"
description The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ecu. The skid control ecu converts these wheel speed signals into a 4-pulse signal ...

Other materials:

Towing related terms
Gcwr (gross combination weight rating) The maximum allowable gross combination weight. The gross combination weight is the sum of the total vehicle weight (including the occupants, cargo and any optional equipment installed on the vehicle) and the weight of the trailer being towed (inc ...

Head restraints
Head restraints are provided for all seats. Front seats Up Pull the head restraints up. Down Push the head restraint down while pressing the lock release button. Rear seats Up Pull the head restraints up. Down Push the head restraint down while pressing the lock rel ...

Installation
Hint: Use the same procedures for the rh side and lh side. The procedures listed below are for the rh side. Install front seat assembly Place the seat in the cabin. Notice: Be careful not to damage the vehicle body. Connect the connector under the seat. Lift up the se ...

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