Part 2

2UR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System
- EVAP System

15. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)

(a) Disconnect the E1 ECM connector.

(b) Disconnect the canister pump module connector.

OK -- REPLACE ECM

NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

16. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

(a) Turn the power switch off.

(b) Remove the canister lower cover Removal.

(c) Disconnect the canister pump module connector.

(d) Apply the battery voltage to VLVB and VGND terminals of the canister pump module.

(e) Touch the canister pump module to confirm the vent valve operation.

Result

B -- REPLACE CANISTER ASSEMBLY
A -- Continue to next step.

17. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

(a) Disconnect the E1 ECM connector.

(b) Disconnect the canister pump module connector.

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

Standard resistance:

OK -- REPLACE ECM

NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

18. LOCATE EVAP LEAK PART (PURGE VSV - CANISTER)

(a) Disconnect the vent hose.

(b) Connect the EVAP tester to the vent hose with the adapter.

(c) Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).

(d) Apply soapy water to the piping and connecting parts of the EVAP system.

(e) Look for areas where bubbles appear. This indicates the leak point.

(f) 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 -- Continue to next step.

19. REPLACE MALFUNCTIONING PART

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

20. CHECK FUEL TANK CAP ASSEMBLY

(a) Check if the fuel cap is tightened until a few "click" sounds are heard.

(b) 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 -- REPLACE FUEL TANK CAP
OK -- Continue to next step.

21. LOCATE EVAP LEAK PART (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK)

(a) Disconnect the vent hose.

(b) Connect the EVAP tester to the vent hose with the adapter.

(c) Connect the Techstream to DLC3.

(d) Turn the power switch on (IG).

(e) Enter the following menus: Powertrain / Engine and ECT / Active Test /Activate the Fuel Vapor-Containment Valve.

(f) Turn the Fuel vapor-containment valve ON with the Techstream.

(g) Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).

(h) Apply soapy water to the piping and connecting parts of the EVAP system.

(i) Look for areas where bubbles appear. This indicates the leak point.

(j) 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 -- Continue to next step.

22. REPLACE MALFUNCTIONING PART

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

23. CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)

(a) Disconnect the mS1 wire harness to wire harness connector.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG).

(d) Enter the following menus: Powertrain / Engine and ECT / Active Test /Activate the Fuel Vapor-Containment Valve.

(e) Turn the fuel vapor-containment valve ON with the Techstream.

(f) Measure the voltage between terminals 5 and 6 of the mS1 connector.

Standard voltage:

10 to 14 V

OK -- CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS)

NG -- CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - EFI NO. 2 FUSE)

24. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - EFI NO. 2 FUSE)

(a) Disconnect the mS1 wire harness to wire harness connector.

(b) Measure the voltage between terminal mS1-6 and the body ground.

Standard voltage:

10 to 14 V

NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

25. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY - ECM)

(a) Disconnect the E1 ECM connector.

(b) Disconnect the mS1 wire harness to wire harness connector.

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

Standard resistance:

NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

26. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

27. REPLACE PURGE VSV

(a) Replace the purge VSV Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

28. REPLACE CANISTER ASSEMBLY

(a) Replace the canister assembly Removal.

NOTICE:
* 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.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

29. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS)

(a) Remove the fuel tank assembly Removal.

(b) Disconnect the fuel vapor-containment valve connector.

(d) Reinstall fuel tank assembly Installation.

NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

30. REPLACE FUEL VAPOR-CONTAINMENT VALVE

(a) Replace the fuel vapor-containment valve Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

31. REPLACE FUEL TANK CAP

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

32. REPAIR OR REPLACE HARNESS AND CONNECTOR

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

33. REPAIR OR REPLACE VACUUM HOSE

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

34. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL 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.

(a) Clear DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Remove the fuel tank cap and reinstall the fuel cap.

(c) Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode.

NOTICE:
* 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

Manual Operation Step

Timing Chart

NEXT -- Continue to next step.

35. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 1)

(a) Select the step 1 and wait 10 seconds.

NEXT -- Continue to next step.

36. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 2)

(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.

Result

B -- PERFORM ACTIVE TEST USING TECHSTREAM (VACUUM PUMP)

C -- REPLACE CANISTER ASSEMBLY
A -- Continue to next step.

37. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 3)

(a) Perform step 3.

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

Result

(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.

Result

B -- INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

C -- CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)

D -- LOCATE EVAP LEAK PART (PURGE VSV - CANISTER)
A -- Continue to next step.

38. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 4)

(a) Perform step 4.

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

Result

B -- CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD)
A -- Continue to next step.

39. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 5)

(a) Perform step 5 and wait 60 seconds.

(b) Check the EVAP pressure. This pressure is the second reference pressure standard.

NEXT -- Continue to next step.

40. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 6)

(a) Perform step 6 and wait 5 seconds.

NEXT -- Continue to next step.

41. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 7)

(a) Perform step 7.

(b) Check that the tank pressure and EVAP pressure change.

(c) Check the tank pressure again when it has stabilized. This pressure is the fuel tank leak pressure standard.

Result

B -- CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)
A -- Continue to next step.

42. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 8)

(a) Perform step 8 and wait 60 seconds.

(b) Check the EVAP pressure. This pressure is the third reference pressure standard.

(c) Compare the tank pressure checked in step 8 with the third reference pressure.

Result

B -- CHECK FUEL TANK CAP ASSEMBLY
A -- Continue to next step.

43. PERFORM CONFIRMATION DRIVING PATTERN

(a) KEY-OFF MONITOR DRIVE PATTERN

(1) Connect the Techstream to the DLC3.

(2) Confirm the following conditions are satisfied:

### ptxt ### The fuel level is less than 90%.
### ptxt ### The altitude is less than 2400 m (8000 ft.).
### ptxt ### The vehicle is stopped (the vehicle speed is less than 2 mph).
### ptxt ### The ECT is 4.4 to 35°C (40 to 95°F).
### ptxt ### The IAT is 4.4 to 35°C (40 to 95°F).
### ptxt ### Driven vehicle in the city area or on a freeway for 10 minutes or more.
(3) Perform the drive pattern:

### ptxt ### Allow the engine to idle for 5 minutes or more.
### ptxt ### Turn the power switch off and wait 6 hours.
(4) Check the monitor status with the Techstream.

(b) PURGE FLOW MONITOR DRIVE PATTERN (P0441)

(1) Connect the Techstream to the DLC3.

(2) Confirm that the following conditions are satisfied:

### ptxt ### The Engine Coolant Temperature (ECT) is more than 4.4°C (40°F).
### ptxt ### The Intake Air Temperature (IAT) is more than 4.4°C (40°F).
(3) Perform the drive pattern:

### ptxt ### Remove and reinstall the fuel cap to release the fuel tank pressure.
### ptxt ### Turn the power switch on (READY).
### ptxt ### Warm up the engine until the ECT reaches 75°C (167°F) or more.
### ptxt ### 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)