Part 2
1GR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System - (Continued)
- EVAP System
21. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE)
(a) Turn the ignition switch off.
(b) Disconnect the canister pump module connector.
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Text in Illustration
Result
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.
22. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)
(a) Turn the ignition switch off.
(b) Disconnect the canister pump module connector.
(c) Apply the battery voltage to terminals VLVB and VGND of the canister pump module.
(d) Touch the canister pump module to confirm the vent valve operation.
Text in Illustration
Result
B -- REPLACE CANISTER ASSEMBLY
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR
23. PERFORM ACTIVE TEST USING TECHSTREAM (FOR CANISTER PUMP MODULE (LEAK DETECTION PUMP))
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON and turn the Techstream on.
(c) Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump.
(d) Measure the voltage according to the value(s) in the table below.
Text in Illustration
Result
B -- REPLACE ECM
A -- Continue to next step.
24. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch off.
(c) Disconnect the canister pump module connector.
(d) Turn the ignition switch to ON and turn the Techstream on.
(e) Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump.
(f) Measure the voltage according to the value(s) in the table below.
Text in Illustration
Result
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.
25. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)
(a) Disconnect the canister pump module connector.
(b) Turn the ignition switch off.
(c) Measure the resistance according to the value(s) in the table below.
Text in Illustration
Result
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- REPLACE CANISTER ASSEMBLY
26. INSPECT INTAKE AIR SURGE TANK (EVAP PURGE PORT)
(a) Stop the engine.
(b) Disconnect the EVAP hose from the intake air surge tank.
(c) Start the engine.
(d) Use your finger to confirm that the port of the intake air surge tank has suction.
Result
B -- INSPECT INTAKE AIR SURGE TANK
A -- REPLACE EVAP HOSE (INTAKE AIR SURGE TANK - PURGE VSV)
27. CORRECTLY REINSTALL OR REPLACE FUEL CAP ASSEMBLY
HINT
* When reinstalling the fuel cap, tighten it until a few click sounds are heard.
* When replacing the fuel cap, use a fuel cap that meets OEM specifications, and install it until a few click sounds are heard.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
28. REPLACE FUEL CAP ASSEMBLY
HINT
When installing the fuel cap, tighten it until a few click sounds are heard.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
29. LOCATE EVAP LEAK PART
Text in Illustration
(a) Disconnect the vent hose.
(b) Connect the EVAP pressure tester tool to the canister 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 -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
30. REPLACE CANISTER ASSEMBLY
(a) Replace the canister assembly Removal.
Text in Illustration
NOTICE:
When replacing the canister, check the canister pump module interior and related pipes for water, fuel or 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 fuel tank vent hose.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
31. REPLACE PURGE VSV
(a) Replace the purge VSV Removal.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
32. REPAIR OR REPLACE HARNESS OR CONNECTOR
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
33. REPLACE EVAP HOSE (INTAKE AIR SURGE TANK - PURGE VSV)
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
34. INSPECT INTAKE AIR SURGE TANK
(a) Check that the EVAP purge port of the intake air surge tank is not clogged. If necessary, replace the intake air surge tank.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
35. REPLACE ECM
(a) Replace the ECM Removal.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
36. REPAIR OR REPLACE PARTS OR COMPONENTS INDICATED BY OUTPUT DTCS
(a) Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
37. PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)
NOTICE:
* In the Evaporative System Check (Automatic Mode), the series of 5 Evaporative System Check steps is performed automatically. It takes a maximum of approximately 19 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 an Evaporative System Check, keep the temperature below 35°C (95°F).
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) On the Techstream, enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
(c) After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
HINT
If no pending DTC is found, the repair has been successfully completed.
NEXT -- END
CONFIRMATION DRIVING PATTERN
HINT
After a repair, check the Monitor Status by performing the Key-Off Monitor Confirmation and Purge Flow Monitor Confirmation described below.
1. KEY-OFF MONITOR CONFIRMATION
(a) Preconditions
The monitor will not run unless:
* The vehicle has been driven for 10 minutes or more (in a city area or on a freeway)
* The fuel tank is less than 90% full
* The altitude is less than 2400 m (8000 ft)
* The Engine Coolant Temperature (ECT) is between 4.4 to 35°C (40 to 95°F)
* The Intake Air Temperature (IAT) is between 4.4 to 35°C (40 to 95°F)
* The vehicle remains stationary (the vehicle speed is 0 km/h [0 mph])
(b) Monitor Conditions
(1) Allow the engine to idle for at least 5 minutes.
(2) Turn the ignition switch off and wait for 5 to 10 hours.
HINT
Do not start the engine until checking Monitor Status. If the engine is started, the steps described above must be repeated.
(c) Monitor Status
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON and turn the Techstream on.
(3) Enter the following menus: Powertrain / Engine and ECT / Monitor / Evaporative System.
(4) Check the Monitor Status displayed on the Techstream.
HINT
If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.
2. PURGE FLOW MONITOR CONFIRMATION (P0441)
HINT
Perform this monitor confirmation after the Key-Off Monitor Confirmation shows Complete.
(a) Preconditions
The monitor will not run unless:
* The vehicle has been driven for 10 minutes or more (in a city area or on a freeway)
* The ECT is 4.4°C (400°F) or more
* The IAT is 4.4°C (400°F) or more
(b) Monitor Conditions
(1) Release the pressure from the fuel tank by removing and reinstalling the fuel cap.
(2) Warm the engine up until the ECT reaches more than 75°C (167°F).
(3) Increase the engine speed to 3000 rpm once.
(4) Allow the engine to idle and turn the A/C ON for 1 minute.
(c) Monitor Status
(1) Turn the ignition switch off (where ON or the engine is running).
(2) Connect the Techstream to the DLC3.
(3) Turn the ignition switch to ON and turn the Techstream on.
(4) Enter the following menus: Powertrain / Engine and ECT / Monitor.
(5) Check the Monitor Status displayed on the Techstream.
HINT
If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.
MONITOR RESULT
Refer to Checking Monitor Status Mode 6 Data.