- DTC judgment completed
- System normal
| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001B4EJ |
| Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 - ] |
| Title: A25A-FXS (ENGINE CONTROL): SFI SYSTEM: P24507E,P24517F; Evaporative Emission System Switching Valve Actuator Stuck On; 2019 - 2022 MY Avalon HV [04/2018 - ] | ||
|
DTC |
P24507E |
Evaporative Emission System Switching Valve Actuator Stuck On |
|
DTC |
P24517F |
Evaporative Emission System Switching Valve Actuator Stuck Off |
DTC SUMMARY
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
|
P24507E |
Evaporative Emission System Switching Valve Actuator Stuck On |
Either of the following conditions is met when fuel tank pressure is higher than -2 kPa(gauge) [-0.3 psi(gauge)], and less than 3 kPa(gauge) [0.4 psi(gauge)].
|
|
Comes on |
DTC stored |
SAE Code: P2450 |
|
P24517F |
Evaporative Emission System Switching Valve Actuator Stuck Off |
Either of the following conditions is met:
|
|
Comes on |
DTC stored |
SAE Code: P2451 |
|
DTC No. |
Monitoring Item |
Detection Timing |
Detection Logic |
SAE Code |
|---|---|---|---|---|
|
P24507E |
Fuel vapor-containment valve stuck open |
EVAP monitoring (power switch off) |
2 trip |
P2450 |
|
P24517F |
Fuel vapor-containment valve stuck close |
P2451 |
DESCRIPTION
Refer to EVAP (Evaporative Emission) System.
Click here
![2019 - 2022 MY Avalon HV [04/2018 - ]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: EVAP System+](/t3Portal/stylegraphics/info.gif)
MONITOR DESCRIPTION
-
P24507E: Fuel vapor-containment valve stuck open
During sequence C, the leak detection pump creates vacuum in the EVAP system. If the pressure in the fuel tank drops, the ECM determines that the fuel vapor-containment valve is stuck open, illuminates the MIL and stores the DTC (2 trip detection logic).
-
P24517F: Fuel vapor-containment valve stuck closed (vent)
During sequence I, the fuel vapor-containment valve opens to allow atmospheric pressure into the fuel tank. If there is no change in fuel tank pressure, the ECM determines that the fuel vapor-containment valve is stuck closed, illuminates the MIL and stores the DTC (2 trip detection logic).
During sequence G, the fuel vapor-containment valve opens to allow vacuum pressure generated by the leak detection pump into the fuel tank. If the pressure in the fuel tank does not drop, the ECM determines that the fuel vapor-containment valve is stuck closed, illuminates the MIL and stores the DTC (2 trip detection logic).
MONITOR STRATEGY
|
Required Sensors/Components (Main) |
Fuel vapor-containment valve Fuel tank pressure sensor Canister pump module |
|
Required Sensors/Components (Related) |
- |
|
Frequency of Operation |
Once per driving cycle |
|
Duration |
Within 20 minutes |
|
MIL Operation |
2 driving cycles |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Key-off monitor runs when all of the following conditions are met |
- |
|
Atmospheric pressure |
70 kPa(abs) [10.2 psi(abs)] or higher, and less than 110 kPa(abs) [16 psi(abs)] |
|
Auxiliary battery voltage |
10.5 V or higher |
|
Vehicle speed |
Less than 4 km/h (2.5 mph) |
|
Power switch |
Off |
|
Engine condition |
Not running |
|
Key-OFF duration |
5, 7 or 9.5 hours |
|
Pressure sensor of canister pump module malfunction (P0451, P0452, P0453) |
Not detected |
|
Fuel tank pressure sensor malfunction (P1451, P1452, P1453) |
Not detected |
|
Purge VSV |
Not operated by scan tool |
|
Vent valve |
Not operated by scan tool |
|
Fuel vapor-containment valve |
Not operated by scan tool |
|
Leak detection pump |
Not operated by scan tool |
|
Purge flow before key-OFF |
Performed |
|
Engine coolant temperature |
4.4°C (39.9°F) or higher, and less than 35°C (95°F) |
|
Intake air temperature |
4.4°C (39.9°F) or higher, and less than 35°C (95°F) |
TYPICAL MALFUNCTION THRESHOLDS
P2450: Fuel Vapor-containment Valve Stuck Open
|
Either of the following conditions is met when fuel tank pressure is higher than -2 kPa(gauge) [-0.3 psi(gauge)], and less than 3 kPa(gauge) [0.4 psi(gauge)] |
Condition 1 or 2 |
|
1. Fuel tank pressure change when vacuum introduction for canister |
Higher than 0.5 kPa [0.07 psi] |
|
2. EVAP pressure when vacuum introduction for canister was complete |
Higher than [third reference pressure x 0.2] |
P2451: Fuel Vapor-containment Valve Stuck Close
|
Either of the following conditions is met |
Condition 1 or 2 |
|
1. Both of the following conditions are met |
Condition (a) and (b) |
|
(a) Fuel tank pressure |
Higher than -2 kPa(gauge) [-0.3 psi(gauge)], and less than 3 kPa(gauge) [0.4 psi(gauge)] |
|
(b) Fuel tank pressure change when vacuum introduction for fuel tank |
Less than 0.5 kPa [0.07 psi] |
|
2. Both of the following conditions are met |
Condition (a) and (b) |
|
(a) Fuel tank pressure |
-2 kPa(gauge) [-0.3 psi(gauge)] or less, or 3 kPa(gauge) [0.4 psi(gauge)] or higher |
|
(b) EVAP pressure change when fuel vapor-containment valve is open |
Less than 0.9 kPa [0.1 psi] |
MONITOR RESULT
Refer to EVAP System.
Click here
CONFIRMATION DRIVING PATTERN
NOTICE:
- The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the Techstream. It takes a maximum of approximately 40 minutes.
- Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.
- Do not start the engine during this operation.
- When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor will from and any check result will be inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).
HINT:
-
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
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- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for at least 30 seconds.
- Turn the power switch on (IG) [A].
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode [B].
- After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P24507E or P24517F.
-
Check the DTC judgment result.
Techstream Display
Description
NORMAL
ABNORMAL
- DTC judgment completed
- System abnormal
INCOMPLETE
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
HINT:
- If the judgment result is NORMAL, the system is normal.
- If the judgment result is ABNORMAL, the system is malfunctioning.
-
[A] to [B]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
CAUTION / NOTICE / HINT
NOTICE:
-
Vehicle Control History may be stored in the hybrid vehicle control ECU assembly if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the Freeze Frame Data and Vehicle Control History can be useful for troubleshooting.
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(Select Powertrain in Health Check and then check the time stamp data.)
Click here
-
If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU assembly, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
Click here
PROCEDURE
|
1. |
GO TO EVAP SYSTEM |
(a) Refer to EVAP System.
Click here
| NEXT |
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END |
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