SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P142200, P142300
| DTC Code | DTC Name |
|---|---|
| P142200 | Evaporative Emission Fuel Tank (Small Leak) |
| P142300 | Evaporative Emission Fuel Tank (Gross Leak) |
DTC SUMMARY
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P142200 | Evaporative Emission Fuel Tank (Small Leak) | Leak detection pump creates negative pressure (vacuum) in fuel tank and fuel tank pressure is measured. Reference pressure is measured at the start and at end of leak check. If stabilized pressure is higher than third reference pressure, ECM determines that fuel tank has a small leak. |
|
Comes on | DTC stored | SAE: P1422 |
| P142300 | Evaporative Emission Fuel Tank (Gross Leak) | Leak detection pump creates negative pressure (vacuum) in fuel tank and fuel tank pressure is measured. Reference pressure is measured at the start and at end of leak check. If stabilized pressure is higher than [third reference pressure x 0.2], ECM determines that fuel tank has a large leak. |
|
Comes on | DTC stored | SAE: P1423 |
| DTC No. | Monitoring Item | Detection Timing | Detection Logic | SAE |
|---|---|---|---|---|
| P142200 | Fuel tank small leak | EVAP monitoring (power switch off) |
2 trip | P1422 |
| P142300 | Fuel tank gross leak | P1423 |
MONITOR DESCRIPTION
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P142200: Fuel tank small leak
In operation G, the leak detection pump creates negative pressure (vacuum) in the fuel tank and the fuel tank pressure is measured. If the stabilized system pressure is higher than the third reference pressure, the ECM determines that the fuel tank has a small leak. The ECM illuminates the MIL and stores the DTC (2 trip detection logic).
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P142300: Fuel tank gross leak
In operation G, the leak detection pump creates negative pressure (vacuum) in the fuel tank and the fuel tank pressure is measured. If the stabilized system pressure is higher than [third reference pressure x 0.2] (near atmospheric pressure), the ECM determines that the fuel tank has a large leak. The ECM illuminates the MIL and stores the DTC (2 trip detection logic).
MONITOR STRATEGY
| Required Sensors/Components | Fuel tank pressure sensor Fuel vapor-containment valve |
| Frequency of Operation | Once per driving cycle |
CONFIRMATION DRIVING PATTERN
Note
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The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the GTS. It takes a maximum of approximately 40 minutes.
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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.
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Do not start the engine during this operation.
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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).
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Connect the GTS to the DLC3.
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Turn the power switch on (IG).
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Turn the GTS on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the power switch off and wait for at least 30 seconds.
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Turn the power switch is on (IG) and turn the GTS on.
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Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.
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After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Utility / All Readiness.
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Input the DTC: P142200 or P142300.
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Check the DTC judgment result.
GTS Display Description NORMAL
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DTC judgment completed
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System normal
ABNORMAL
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DTC judgment completed
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System abnormal
INCOMPLETE
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DTC judgment not completed
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Perform driving pattern after confirming DTC enabling conditions
Tech Tips
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If the judgment result shows NORMAL, the system is normal.
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If the judgment result shows ABNORMAL, the system is malfunctioning.
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CAUTION / NOTICE / HINT
Note
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Vehicle Control History may be stored in the hybrid vehicle control ECU 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.
(Select Powertrain in Health Check and then check the time stamp data.)
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If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, 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.
