EVAP System: Procedure

1. Turn the power switch off and wait 10 seconds.
2. Turn the power switch on (IG).
3. Turn the power switch off and wait 10 seconds.
4. Connect the Techstream to the DLC3.
5. Turn the power switch on (IG) and turn the Techstream ON.
6. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
7. Confirm the DTCs.
   DTC AND MALFUNCTION CROSS-REFERENCE
   
   

   DTC No.	Suspected Malfunction
   P043E, P043F, P2401, P2402 and P2419	Reference orifice low flow Reference orifice high flow Leak detection pump OFF stuck Leak detection pump ON stuck Vent valve ON (close) stuck
   P2420	Vent valve OFF (vent) stuck
   P0441	Purge VSV close stuck
   P0441 and P1421	Gross leak from canister Purge VSV open stuck
   P1420	Small leak from canister
   P1422	Small leak from fuel tank
   P1423	Gross leak from fuel tank
   P1423 and P2450	FVCV open stuck
   P2451	FVCV close stuck

NEXT: Go to next step 

1. Clear the DTC with the Techstream.
2. Remove the fuel tank cap and reinstall the fuel cap.
3. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
4. After the EVAP System Check is completed, check the DTC.
   RESULT
   
   

   DTC No.	Conclusion	Proceed to
   Set	A malfunction occurs and troubleshooting can be performed	A
   Not set	No malfunctions occur and it is difficult to perform troubleshooting	B
   DTC is not set and any of the current DTCs (P1422, P1423, or P2450) is set	DTCs have set because of the fuel cap loosening	C

B → See step   34 

C → END 

A: Go to next step 

1. Refer to the table below to determine the next procedure according to the output DTCs.
   RESULT
   
   

   DTC No.	Suspected Malfunction	Proceed to
   P0441, P1420, P1421, P1422, P1423, P2450 and/or P2451	Purge VSV open stuck Purge VSV close stuck Gross leak from canister Small leak from canister Gross leak from fuel tank Small leak from fuel tank FVCV open stuck FVCV close stuck	A
   P043E, P043F, P2401, P2402, P2419 and/or P2420	Reference orifice low flow Reference orifice high flow Leak detection pump OFF stuck Leak detection pump ON stuck Vent valve ON (close) stuck Vent valve OFF (vent) stuck	B

B → See step   11 

A: Go to next step 

1. Refer to the table below to determine the next procedure according to the output DTCs.
   RESULT
   
   

   DTC No.	Suspected Malfunction	Proceed to
   P0441	Purge VSV close stuck	A
   P0441 and P1421	Gross leak from canister Purge VSV open stuck	B
   P1420	Small leak from canister
   P1422	Small leak from fuel tank	C
   P1423	Gross leak from fuel tank
   P1423 and P2450	FVCV open stuck	D
   P2451	FVCV close stuck

B → See step   18 

C → See step   21 

D → See step   23 

A: Go to next step 

1. Disconnect the hose (to intake manifold) from the Purge VSV.

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2. Put the engine in inspection mode. Refer to INSPECTION MODE PROCEDURE [09/2012 - ] .
3. Use your finger to confirm that the hose has suction.
   RESULT
   
   

   Result	Proceed to
   There is suction. Conclusion: EVAP hose between Purge VSV and intake manifold is normal.	OK
   There is no suction. Conclusion: Problem in intake manifold or hose between Purge VSV and intake manifold	NG

NG → See step   33 

OK: Go to next step 

1. Disconnect the hose (to canister) from the Purge VSV.

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2. Put the engine in inspection mode. Refer to INSPECTION MODE PROCEDURE [09/2012 - ] .
3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for EVAP Control.
4. Turn the Purge VSV OFF (Purge VSV: OFF).
5. Use your finger to confirm that the Purge VSV has no suction.
6. Turn the Purge VSV ON (Purge VSV: ON).
7. Use your finger to confirm that the purge VSV has suction.

   OK

   Purge VSV functions normally

OK → See step   33 

NG → See step   7 

1. Remove the purge VSV. Refer to REMOVAL [09/2012 - ] .

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2. Apply compressed air to the purge VSV, confirm that no air flows from A to B as shown in the illustration.
3. Apply battery voltage to the purge VSV.
4. While applying compressed air, confirm that air flows from A to B as shown in the illustration.
   RESULT
   
   

   Result	Proceed to
   Air flows from A to B. Conclusion: purge VSV is normal.	OK
   No air flows from A to B. Conclusion: purge VSV is malfunctioning.	NG

NG → See step   27 

OK: Go to next step 

1. Disconnect the E44 purge VSV connector.

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2. Turn the power switch on (IG).
3. Measure the voltage according to the value(s) in the table below.
   RESULT
   
   

   Tester Connection	Result	Suspected Trouble Area	Proceed to
   E44-2 - Body ground	11 to 14 V	Conclusion: No problem exists on power source's wires.	OK
   E44-2 - Body ground	Except above	Conclusion: Problem in wire or connector between purge VSV and battery.	NG

NG → See step   32 

OK: Go to next step 

1. Disconnect the E1 ECM connector and the E44 purge VSV connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E1-17 (PRG) - E44-1	Always	10 Ω or less
   E1-17 (PRG) - Body ground	Always	10 kΩ or more
   E44-1 - Body ground	Always	10 kΩ or more

NG → See step   32 

OK: Go to next step 

1. Replace the ECM. Refer to REMOVAL [09/2012 - ] .

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Connect the Techstream to DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump.
4. Turn the leak detection pump ON with the Techstream.
5. Touch the canister pump module and check if the pump is moving.

   OK

   Pump operates

NG → See step   13 

OK: Go to next step 

1. Remove the canister lower cover. Refer to REMOVAL [09/2012 - ] .
2. Connect the Techstream to DLC3.
3. Turn the power switch on (IG).
4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Vent Valve.
5. Touch the canister pump module, use the Techstream to turn the vent valve ON and OFF, and check if the vent valve is moving.

   OK

   Vent valve vibration can be felt.

OK → See step   28 

NG → See step   16 

1. Turn the power switch off.

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2. Remove the canister lower cover. Refer to REMOVAL [09/2012 - ] .
3. Disconnect the canister pump module connector.
4. Connect the Techstream to DLC3.
5. Turn the power switch on (IG).
6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump.
7. Turn the leak detection pump ON with the Techstream.
8. Measure the voltage between MTRB terminal 1 of the canister pump module connector and body ground when the leak detection pump is turned ON and OFF using the Techstream.

   Standard voltage

   10 to 14 V

NG → See step   15 

OK: Go to next step 

1. Remove the canister lower cover. Refer to REMOVAL [09/2012 - ] .
2. Disconnect the canister pump module connector.

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3. Measure the resistance between MGND terminal of the canister pump module and the body ground.

   Standard resistance

   Below 1 Ω

OK → See step   28 

NG → See step   32 

1. Disconnect the E1 ECM connector.
2. Disconnect the canister pump module connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E1-15 (MPMP) - V1-1 (MTRB)	Always	10 Ω or less
   E1-15 (MPMP) or V1-1 (MTRB) - Body ground	Always	10 kΩ or higher

OK → See step   26 

NG → See step   32 

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1. Turn the power switch off.
2. Remove the canister lower cover. Refer to REMOVAL [09/2012 - ] .
3. Disconnect the canister pump module connector.
4. Apply the battery voltage to VLVB and VGND terminals of the canister pump module.
5. Touch the canister pump module to confirm the vent valve operation.
   RESULT
   
   

   Test Result	Suspected Trouble Areas	Proceed to
   Operating	1. Wire harness between vent valve and ECM 2. ECM	A
   Not operating	Vent valve	B

B → See step   28 

A: Go to next step 

1. Disconnect the E1 ECM connector.
2. Disconnect the canister pump module connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E1-16 (VPMP) - V1-8 (VGND)	Always	10 Ω or less
   E1-16 (VPMP) or V1-8 (VGND) - Body ground	Always	10 kΩ or higher

OK → See step   26 

NG → See step   32 

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1. Disconnect the vent hose.
2. Connect the EVAP tester to the vent hose with the adapter.
3. Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).
4. Apply soapy water to the piping and connecting parts of the EVAP system.
5. Look for areas where bubbles appear. This indicates the leak point.
6. Repair or replace the leak point.

   HINT: 

   Disconnect the hose between the canister and the fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks.

NEXT: Go to next step 

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Check if the fuel cap is tightened until a few "click" sounds are heard.
2. If you have the EVAP tester, check the fuel cap using the fuel cap adaptor.
   1. Install the fuel cap to the fuel cap adaptor, and connect the hose from the EVAP tester's pump.
   2. Pressurize the fuel cap adaptor to between 24 and 28 mmHg or for 45 seconds.
   3. Stop the pump and seal the fuel cap adaptor.
   4. Wait 2 minutes.
   5. Confirm that the pressure is higher than 15 mmHg.

      OK

      Higher than 15 mmHg

NG → See step   31 

OK: Go to next step 

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1. Disconnect the vent hose.
2. Connect the EVAP tester to the vent hose with the adapter.
3. Connect the Techstream to DLC3.
4. Turn the power switch on (IG).
5. Enter the following menus: Powertrain / Engine and ECT / Active Test /Activate the Fuel Vapor-Containment Valve.
6. Turn the Fuel vapor-containment valve ON with the Techstream.
7. Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).
8. Apply soapy water to the piping and connecting parts of the EVAP system.
9. Look for areas where bubbles appear. This indicates the leak point.
10. Repair or replace the leak point.

    HINT: 

    Disconnect the hose between the canister and the fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks.

NEXT: Go to next step 

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

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1. Disconnect the mS1 wire harness to wire harness connector.
2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG).
4. Enter the following menus: Powertrain / Engine and ECT / Active Test /Activate the Fuel Vapor-Containment Valve.
5. Turn the fuel vapor-containment valve ON with the Techstream.
6. Measure the voltage between terminals 5 and 6 of the mS1 connector.

   Standard voltage

   10 to 14 V

OK → See step   29 

NG → See step   24 

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1. Disconnect the mS1 wire harness to wire harness connector.
2. Measure the voltage between terminal mS1-6 and the body ground.

   Standard voltage

   10 to 14 V

NG → See step   32 

OK: Go to next step 

1. Disconnect the E1 ECM connector.
2. Disconnect the mS1 wire harness to wire harness connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E1-8 (CCV2) - mS1-5	Always	10 Ω or less
   E1-8 (CCV2) or mS1-5 - Body ground	Always	10 kΩ or more

NG → See step   32 

OK: Go to next step 

1. Replace the ECM. Refer to REMOVAL [09/2012 - ] .

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Replace the purge VSV. Refer to REMOVAL [09/2012 - ] .

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Replace the canister assembly. Refer to REMOVAL [09/2012 - ] .
   NOTE:

   • When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the hose from the canister to the fuel tank.
   • Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter.

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NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Remove the fuel tank assembly. Refer to REMOVAL [09/2012 - ] .
2. Disconnect the fuel vapor-containment valve connector.

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3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   mS1-5 - m2-1 (CCV)	Always	Below 1 Ω
   mS1-6 - m2-2 (+B)	Always	Below 1 Ω

4. Reinstall fuel tank assembly. Refer to INSTALLATION [09/2012 - ] .

NG → See step   32 

OK: Go to next step 

1. Replace the fuel vapor-containment valve. Refer to REMOVAL [09/2012 - ] .

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

HINT: 

In the manual operation check, the EVAP system can be checked in signal steps. Valve operation and pressure in each step can also be checked.

1. Clear DTCs. Refer to DTC CHECK / CLEAR [09/2012 - ] .
2. Remove the fuel tank cap and reinstall the fuel cap.
3. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode.
   NOTE:

   • In the Evaporative System Check (Manual Mode), the series of 9 Evaporative System Check steps is performed automatically. It takes a maximum of approximately 18 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 leak check of the fuel tank unavailable.
   • Do not run the engine in this step.
   • When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the temperature below 35°C (95°F).
   TESTER DISPLAY
   
   

   Display	Detail
   Atm Press Check	The number of steps and step names are displayed
   PURGE VSV	Purge VSV condition is displayed: ON (Open) / OFF (Closed)
   VENT VALVE	Vent valve condition is displayed: ON (Closed) / OFF (Vent)
   LEAK DETECTION PUMP	Leak detection pump condition is displayed: ON / OFF
   FVCV	Fuel vapor-containment valve condition is displayed: ON (Open) / OFF (Closed)
   TANK PRESS	Fuel tank pressure (Gauge pressure)
   VAPOR PRESS	EVAP pressure (Gauge pressure)
   VAPOR PRESS	EVAP pressure (Absolute pressure)
   Time (Step)	Elapsed time for each step
   Time (VSV)	Accumulated purge VSV open time
   Time (PUMP)	Accumulated leak detection pump operating time

   MANUAL OPERATION STEP
   
   

   Step	Operation
   1. Atm Press Check 1	Atmospheric pressure measurement
   2. Ref Press Check 1	First reference pressure measurement
   3. Leak Check	EVAP system pressure measurement
   4. Purge VSV Check	Purge VSV monitor
   5. Ref Press Check 2	Second Reference pressure measurement
   6. Resetting	Resetting
   7. Tank Leak Check	Fuel tank pressure measurement
   8. Ref Press Check 3	Third Reference pressure measurement

   • Timing Chart

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NEXT: Go to next step 

1. Select the step 1 and wait 10 seconds.

NEXT: Go to next step 

• (a) Perform step 2.

• (b) Check the EVAP pressure 2 seconds after the leak detection pump is activated*.

  *: The leak detection pump begins to operate at the start of step 2.

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• (c) Check the EVAP pressure again when it has stabilized. This pressure is the first reference pressure standard.

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B → See step   11 

C → See step   28 

A: Go to next step 

• (a) Perform step 3.

• (b) Check the EVAP pressure change in step 3.

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  RESULT
  
  

  Test Result	Suspected Trouble Area	Proceed to
  EVAP pressure change in step (b) is 762 mmHg-a or more	Not yet determined	A
  EVAP pressure in step (b) is below 762 mmHg-a	Vent valve stuck OFF	B

• (c) Check the fuel tank pressure change in step 3.

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  RESULT
  
  

  Test Result	Suspected Trouble Area	Proceed to
  Fuel tank pressure in step (c) is below 763.7 mmHg-a	Not yet determined	A
  Fuel tank pressure change in step (c) is 763.7 mmHg-a or more	Fuel vapor-containment valve (FVCV) ON (open) stuck	C

• (d) Check the EVAP pressure again when it has stabilized. This pressure is the canister leak pressure standard.

• (e) Compare the first reference pressure with the canister leak pressure.

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  RESULT
  
  

  Test Result	Suspected Trouble Area	Proceed to
  Lower than first reference pressure	Not yet determined	A
  First reference pressure or higher	Purge VSV open stuck Leakage from line between Purge VSV and canister	D

B → See step   16 

C → See step   23 

D → See step   18 

A: Go to next step 

• (a) Perform step 4.

• (b) Check the EVAP pressure change in step 4.

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  RESULT
  
  

  Test Result	Suspected Trouble Area	Proceed to
  EVAP pressure change in step (b) is 762 mmHg-a or more	Not yet determined	A
  EVAP pressure in step (b) is below 762 mmHg-a	Purge VSV close stuck	B

B → See step   5 

A: Go to next step 

1. Perform step 5 and wait 60 seconds.
2. Check the EVAP pressure. This pressure is the second reference pressure standard.

NEXT: Go to next step 

1. Perform step 6 and wait 5 seconds.

NEXT: Go to next step 

1. Perform step 7.
2. Check that the tank pressure and EVAP pressure change.
3. Check the tank pressure again when it has stabilized. This pressure is the fuel tank leak pressure standard.

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   RESULT
   
   

   Test Result	Suspected Trouble Area	Proceed to
   Tank pressure change is more than 766.7 mmHg-a and EVAP pressure is more than 752.5 mmHg-a	Not yet determined	A
   Tank pressure change is less than 766.7 mmHg-a and EVAP pressure is less than 752.5 mmHg-a	Fuel vapor-containment valve (FVCV) OFF (close) stuck	B

B → See step   23 

A: Go to next step 

1. Perform step 8 and wait 60 seconds.
2. Check the EVAP pressure. This pressure is the third reference pressure standard.
3. Compare the tank pressure checked in step 8 with the third reference pressure.

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   RESULT
   
   

   Test Result	Suspected Trouble Area	Proceed to
   Lower than third reference pressure	Not yet determined	A
   Third reference pressure or higher	Leakage from line between fuel vapor-containment valve and fuel tank	B

B → See step   20 

A: Go to next step 

1. KEY-OFF MONITOR DRIVE PATTERN
   1. Connect the Techstream to the DLC3.
   2. Confirm the following conditions are satisfied:
      • The fuel level is less than 90%.
      • The altitude is less than 2400 m (8000 ft.).
      • The vehicle is stopped (the vehicle speed is less than 2 mph).
      • The ECT is 4.4 to 35°C (40 to 95°F).
      • The IAT is 4.4 to 35°C (40 to 95°F).
      • Driven vehicle in the city area or on a freeway for 10 minutes or more.
   3. Perform the drive pattern:
      1. Allow the engine to idle for 5 minutes or more.
      2. Turn the power switch off and wait 6 hours.
   4. Check the monitor status with the Techstream.
2. PURGE FLOW MONITOR DRIVE PATTERN (P0441)
   1. Connect the Techstream to the DLC3.
   2. Confirm that the following conditions are satisfied:
      • The Engine Coolant Temperature (ECT) is more than 4.4°C (40°F).
      • The Intake Air Temperature (IAT) is more than 4.4°C (40°F).
   3. Perform the drive pattern:
      1. Remove and reinstall the fuel cap to release the fuel tank pressure.
      2. Turn the power switch on (READY).
      3. Warm up the engine until the ECT reaches 75°C (167°F) or more.
      4. Driven vehicle in the city area or on a freeway for 10 minutes or more.
   4. Check the monitor status with the Techstream.

NEXT → PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)