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DTC P00FE-00: Fuel tank vapor line restricted
 
 
 
 
TECHNICAL DESCRIPTION
  • The ECM monitors the input signals from the fuel tank pressure sensor, the fuel tank differential pressure sensor, and the canister pressure sensor built into the Evaporative Leak Check Module (ELCM).
  • The ECM checks whether the fuel evaporative emissions passage is normal based on the input signals.
 
 
MONITOR EXECUTION
Once per driving cycle.
 
 
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC set in memory for the item monitored below)
  • Evaporative emission purge solenoid monitor
  • Bypass valve monitor
  • Fuel tank solenoid valve monitor
  • Switching valve monitor
  • Canister pressure sensor monitor
  • Manifold absolute pressure sensor monitor
  • Fuel tank pressure sensor monitor
  • Fuel tank differential pressure sensor monitor
  • Barometric pressure sensor/Manifold absolute pressure correlation
  • Barometric pressure sensor monitor
  • Fuel level sensor monitor
  • Engine off timer monitor
  • Controller area network (CAN) monitor
Sensor (The sensor below is determined to be normal)
  • Engine coolant temperature sensor
  • Intake air temperature sensor
 
 
DTC SET CONDITIONS
Logic Flow Chart
Check Conditions
  • Power supply mode of electric motor switch is OFF.
  • 12V battery positive voltage is 11 volts or higher.
  • Engine coolant temperature is higher than 4°C (39°F) and lower than 35°C (95°F).
  • Intake air temperature at ECM wake-up is higher than 4°C (39°F) and lower than 35°C (95°F).
  • ECM is woken up in 5, 6 or 8.5 hours since the power supply mode of electric motor switch was OFF.
  • Barometric pressure is 76 kPa (22.4 in.Hg) or higher.
  • Fuel level is 85 percent or less.
  • Fuel tank pressure at ECM wake-up is less than 19.96 kPa (5.89 in.Hg) or more than 40.00 kPa (11.81 in.Hg).
  • Accumulated time that electric motor switch is ON is more than 1,620 seconds.
Judgment Criteria
  • The fuel tank absolute pressure subtracted from the barometric pressure measured by the fuel tank pressure sensor is more than specified pressure.
  • The fuel tank pressure subtracted from the barometric pressure measured by the fuel tank differential pressure sensor is less than specified pressure.
  • The evaporative emission canister pressure is less than specified pressure.
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • Fuel filler lid cannot be opened even when pressing the fuel filler lid opener switch.
  • Indicates "REFUELING SYSTEM SERVICE REQUIRED" on the information screen in the multi-information display.
 
 
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function, OBD-II Drive Cycle – Pattern 4 OBD- II DRIVE CYCLE.
 
 
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Vapor line is clogged.
  • Fuel tank pressure sensor failed.
  • Harness damage in fuel tank pressure sensor circuit, harness damage or connector damage.
  • Fuel tank differential pressure sensor failed.
  • Harness damage in fuel tank differential pressure sensor circuit, harness damage or connector damage.
  • The output of the fuel level sensor is abnormal.
  • Barometric pressure sensor (built into the ECM) failed.
  • ECM failed.
 
 
DIAGNOSIS
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
1.STEP 1. Using scan tool (M.U.T.-III SE), read the DTC.
Use scan tool (M.U.T.-III SE) to check and see if a DTC other than P00FE-00 is set.
Q: Is DTC other than P00FE-00 set?
Perform troubleshooting for the set DTC (Refer to DIAGNOSTIC TROUBLE CODE CHART).
 
2.STEP 2. Using scan tool (M.U.T.-III SE), check the data list.
Use scan tool (M.U.T.-III SE) to check the data list (Refer to DATA LIST REFERENCE TABLE).
  • Item number 780: Vapor line clogged NG
Q: Is the check result normal?
Intermittent malfunction (Refer to GENERAL INFORMATION, General Information – How to Use Troubleshooting/Inspection Service Points HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).
 
3.STEP 3. Using scan tool (M.U.T.-III SE), check the data list.
Use scan tool (M.U.T.-III SE) to check the data list (Refer to DATA LIST REFERENCE TABLE).
  • Item number 850: EVAP System Absolute Pressure Sensor
Q: Is the check result normal?
 
4.STEP 4. Check harness between fuel tank pressure sensor connector terminal number 1 and ECM connector terminal number 78, check harness between fuel tank pressure sensor connector terminal number 2 and ECM connector terminal number 88 and check harness between fuel tank pressure sensor connector terminal number 3 and ECM connector terminal number 77.
Check the harness for open/short circuit and damage.
Q: Are the check result normal?
Replace the fuel tank pressure sensor (Refer to ENGINE, Fuel Supply – Fuel Tank FUEL TANK REMOVAL AND INSTALLATION and FUEL TANK DISASSEMBLY AND ASSEMBLY). Then
Repair or replace the connector, or repair the damaged harness wire.
 
5.STEP 5. Using scan tool (M.U.T.-III SE), check the data list.
Use scan tool (M.U.T.-III SE) to check the data list (Refer to DATA LIST REFERENCE TABLE).
  • Item number 840: Refuel System Differential Pressure Sensor
Q: Is the check result normal?
 
6.STEP 6. Check harness between fuel tank differential pressure sensor connector terminal number 1 and ECM connector terminal number 96, check harness between fuel tank differential pressure sensor connector terminal number 2 and ECM connector terminal number 116 and check harness between fuel tank differential pressure sensor connector terminal number 3 and ECM connector terminal number 106.
Check the harness for open/short circuit and damage.
Q: Are the check result normal?
Replace the fuel tank differential pressure sensor (Refer to ENGINE, Fuel Supply – Fuel Tank FUEL TANK REMOVAL AND INSTALLATION and FUEL TANK DISASSEMBLY AND ASSEMBLY). Then
Repair or replace the connector, or repair the damaged harness wire.
 
7.STEP 7. Check the bypass valve for clogs.
Check the bypass valve for stuck closed (Refer to ENGINE, Engine, Motor and Emission Control – Emission Control – Evaporative Emission System CANISTER PLUGGED OR DAMAGE INSPECTION).
Q: Is the check result normal?
 
8.STEP 8. Check harness between ECM connector terminal number 66 and bypass valve connector terminal number 1.
Check ground line for short to power supply.
Q: Is the check result normal?
Replace the evaporative emission canister (main) (integrated with bypass valve) (Refer to ENGINE, Engine, Motor and Emission Control – Emission Control – Evaporative Emission System EVAPORATIVE EMISSION CANISTER REMOVAL AND INSTALLATION). Then
Repair or replace the connector, or repair the damaged harness wire.
 
9.STEP 9. Check the relief valve for clogs.
Check the relief valve of the fuel tank solenoid valve for stuck closed (Refer to ENGINE, Engine, Motor and Emission Control – Emission Control – Evaporative Emission System FUEL TANK SOLENOID VALVE CHECK).
Q: Is the check result normal?
Replace the evaporative emission canister (main) (integrated with bypass valve) (Refer to ENGINE, Engine, Motor and Emission Control – Emission Control – Evaporative Emission System EVAPORATIVE EMISSION CANISTER REMOVAL AND INSTALLATION).
 
10.STEP 10. Check tube E and tube F clogging between the evaporative emission canister (main) and fuel tank.
(1) Drain the fuel from the fuel tank.
(2) Use a hand vacuum pump to check the tube E and tube F.
Q: Are the tube E and tube F ventilation?
Repair or replace the tube E and tube F.
 
11.STEP 11. Using scan tool (M.U.T.-III SE) to check the data list after perform the evaporative emission system monitor test.
(1) Perform the evaporative emission system monitor test (Refer to EVAPORATIVE EMISSION CONTROL SYSTEM MONITOR TEST).
(2) Use scan tool (M.U.T.-III SE) to check the data list (Refer to DATA LIST REFERENCE TABLE).
  • Item number 780: Vapor line clogged NG
Q: Is the check result normal?
Intermittent malfunction (Refer to GENERAL INFORMATION, General Information – How to Use Troubleshooting/Inspection Service Points – How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).
Replace the ECM (Refer to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION).
 
12.STEP 12. Using scan tool (M.U.T.-III SE) to check the data list after perform the evaporative emission system monitor test.
(1) Perform the evaporative emission system monitor test (Refer to EVAPORATIVE EMISSION CONTROL SYSTEM MONITOR TEST).
(2) Use scan tool (M.U.T.-III SE) to check the data list (Refer to DATA LIST REFERENCE TABLE).
  • Item number 780: Vapor line clogged NG
Q: Is the check result normal?
The inspection is complete.
Replace the ECM (Refer to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION).