Toyota RAV4 (XA40) 2013-2018 Service Manual: Evaporative emission system reference orifice
Dtc summary
Hint:
The reference orifice is located inside the canister pump module.
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.
*: If only a small amount of fuel is in the fuel tank, it takes longer for the evap pressure to stabilize.
- P043e: reference orifice clogged
In operation b, the leak detection pump creates negative pressure (vacuum) through the reference orifice.
The evap system pressure is then measured by the ecm, using the canister pressure sensor, to determine the reference pressure. If the pressure is lower than -4.85 Kpa-g (-36.4 Mmhg-g), the ecm interprets this as a clog malfunction in the reference orifice, and stops the evap system monitor.
The ecm then illuminates the mil and sets the dtc (2 trip detection logic).
- P043f: reference orifice high-flow
In operation b, the leak detection pump creates negative pressure (vacuum) through the reference orifice.
The evap system pressure is then measured by the ecm using the canister pressure sensor to determine the reference pressure. If the pressure is higher than -1.057 Kpa-g (-7.93 Mmhg-g), the ecm interprets this as a high-flow malfunction in the reference orifice, and stops the evap system monitor. The ecm then illuminates the mil and sets the dtc (2 trip detection logic).
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
"Saturated" indicates that the evap pressure change is less than 0.286 Kpa-g (2.14 Mmhg-g) in 60 seconds.
Monitor result
Refer to checking monitor status (see page es-17).
Catalyst system efficiency below threshold (bank 1)
Monitor description
The ecm uses sensors mounted in front of and behind the three-way catalytic
converter (twc) to
monitor its efficiency.
The first sensor, the air-fuel ratio (a/f) sensor, ...
Evaporative emission control system incorrect purge flow
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).
Monito ...
Other materials:
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 ...
Front seat frame with adjuster
Inspection
Inspect front seat frame with adjuster
Check operation of the seat frame (slide motor).
Check if the seat frame moves smoothly when
the battery is connected to the slide motor
connector terminals.
Ok
If the result is not as specified, replace the seat
frame w ...
Armrest
Front (vehicles with slide function)
Slide the console box lid forward
or backward as needed.
Pull the lid forward by holding
the front of the lid.
Rear
Fold down the armrest for use.
Notice
To prevent damage to the armrest
Do not apply too much load on the armrest. ...
