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:

Fastening the seat belt (for the rear center seat)
Press the plate to release, and then pull the seat belt. Push the plate into the buckle in the order of plate “a” and plate “b” until a clicking sound is heard. Plate “a”, buckle “a” Plate “b”, buckle “b” ...

If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle becomes stuck in mud, dirt or snow: Stop the engine. Set the parking brake and shift the shift lever to p. Remove the mud, snow or sand from around the stuck tire. Place wood, stones or some other material to help provide t ...

Removal
Discharge fuel system pressure (see page fu-9) 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 hood sub-assembly ( ...

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