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Home >> Toyota >> 2011 >> Camry L4-2.5L (2AR-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> EVAP System >> Part 2

Part 2





2AR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System
- EVAP System - (Continued)

15. CHECK EVAP HOSE (PURGE VSV - INTAKE MANIFOLD)





(a) Disconnect the hose (connected to the intake manifold) from the purge VSV.

(b) Start the engine.

(c) Use your finger to confirm that the port of the hose has suction.

Result:





(d) Reconnect the hose.

B -- INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)
A -- Continue to next step.

16. INSPECT PURGE VSV





(a) Remove the purge VSV.

(b) Apply battery voltage to the terminals of the purge VSV.

(c) Using compressed air, confirm that air flows from port A to port B.

Result:





(d) Install the purge VSV.

B -- REPLACE PURGE VSV
A -- Continue to next step.

17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV)

(a) Disconnect the purge VSV connector.

(b) Turn the ignition switch to ON.

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

Result:





(d) Reconnect the purge VSV connector.

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.

18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

(a) Disconnect the ECM connector and the purge VSV connector.

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

Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





(c) Reconnect the purge VSV connector.

(d) Reconnect the ECM connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE ECM

19. 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.

Result:





(e) Reconnect the canister pump module connector.

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.

20. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)





(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

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

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

Result:





(e) Reconnect the canister connector.

C -- REPLACE TRAP WITH OUTLET VALVE CANISTER ASSEMBLY

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

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

(a) Disconnect the ECM connector.

(b) Disconnect the canister pump module connector.

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

Result:





(d) Reconnect the ECM connector.

(e) Reconnect the canister pump module connector.

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE ECM

22. PERFORM ACTIVE TEST USING TECHSTREAM (VACUUM PUMP (ALONE))





(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to ON and turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine / Active Test / Activate the Vacuum Pump.

(f) Measure the voltage according to the value(s) in the table below.

Result:





C -- REPLACE ECM

B -- CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)
A -- Continue to next step.

23. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)

(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

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

Result:





(d) Reconnect the canister pump module connector.

C -- REPAIR OR REPLACE HARNESS OR CONNECTOR

B -- REPLACE TRAP WITH OUTLET VALVE CANISTER ASSEMBLY

A -- REPLACE CANISTER

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

(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

(c) Disconnect the ECM connector.

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

Result:





(e) Reconnect the canister pump module connector.

(f) Reconnect the ECM connector.

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE ECM

25. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)

(a) Stop the engine.

(b) Disconnect the EVAP hose from the intake manifold.

(c) Start the engine.

(d) Use your finger to confirm that the port of the intake manifold has suction.

Result:





(e) Reconnect the EVAP hose.

B -- INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)

A -- REPLACE EVAP HOSE (INTAKE MANIFOLD - PURGE VSV)

26. CORRECTLY REINSTALL OR REPLACE FUEL CAP

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 tighten it until a few click sounds are heard to install it.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

27. REPLACE FUEL CAP

HINT
When replacing the fuel cap, use a fuel cap that meets OEM specifications, and tighten it until a few click sounds are heard to install it.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

28. LOCATE EVAP LEAK PART













(a) Pressurize the evaporative system to 3.2 to 3.7 kPa (24 to 28 mmHg).

(b) Apply soapy water to the piping and connecting parts of the evaporative system.

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

(d) Repair or replace the leak point.

HINT
Disconnect the hose between the canister and 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 EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

29. REPLACE CANISTER

(a) Replace the canister 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 fuel tank vent hose.





NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

30. REPLACE TRAP WITH OUTLET VALVE CANISTER ASSEMBLY

(a) Replace the trap with outlet valve canister assembly Removal.

NOTICE:
When replacing the charcoal with outlet hose canister assembly, 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 fuel tank vent hose.





NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

31. REPLACE PURGE VSV





(a) Disconnect the connector and hoses from the purge VSV.

(b) Remove the purge VSV.

(c) Install a new purge VSV.

(d) Reconnect the connector and hoses.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

32. REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

33. REPLACE EVAP HOSE (INTAKE MANIFOLD - PURGE VSV)

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

34. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)

(a) Check that the EVAP purge port of the intake manifold is not clogged. If necessary, replace the intake manifold.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

35. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

36. REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS

(a) Repair the malfunctioning areas indicated by the DTCs that were confirmed when the vehicle was brought in.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

37. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)

NOTICE:
* The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. 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 fuel tank leak check unavailable.
* Do not run the engine in this step.
* When the temperature of the fuel is 35°C (95°F) or higher, 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) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON and turn the Techstream on.

(c) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(d) Enter the following menus: Powertrain / Engine / Utility / System Check / Evaporative System Check / Automatic Mode.

(e) After the System Check is completed, check for pending DTCs. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.

HINT
If no pending DTCs are found, the repair has been successfully completed.

NEXT -- COMPLETED

CONFIRMATION DRIVING PATTERN

HINT
After a repair, check 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 8000 ft. (2438 m)

* The engine coolant temperature is between 4.4 and 35°C (40 and 95°F)

* The intake air temperature is between 4.4 and 35°C (40 and 95°F)

* The vehicle remains stationary (the vehicle speed is 0 mph [0 km/h])

(b) Monitor Conditions

* Allow the engine to idle for at least 5 minutes.

* Turn the ignition switch off and wait for 5 or 10 hours depending on certain vehicle conditions.

HINT
Do not start the engine until after checking Monitor Status. If the engine is started, the steps described above must be repeated.

(c) Monitor Status

* Connect the Techstream to the DLC3.

* Turn the ignition switch to ON and turn the Techstream on.

* Enter the following menus: Powertrain / Engine / Monitor / Evaporative System.

* Check the Monitor Status displayed on the Techstream.

HINT
If Incomplete is displayed, the monitor is not complete. Make sure that the preconditions have been met, and perform the Monitor Conditions procedure 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 engine coolant temperature is between 4.4 and 35°C (40 and 95°F)

* The intake air temperature is between 4.4 and 35°C (40 and 95°F)

(b) Monitor Conditions

* Release the pressure from the fuel tank by removing and reinstalling the fuel cap.

* Warm the engine up until the engine coolant temperature reaches higher than 75°C (167°F).

* Increase the engine speed to 3000 rpm once.

* Allow the engine to idle and turn the A/C on for 1 minute.

(c) Monitor Status

* Turn the ignition switch off (if it is ON or the engine is running).

* Connect the Techstream to the DLC3.

* Turn the ignition switch to ON and turn the Techstream on.

* Enter the following menus: Powertrain / Engine / Monitor / Evaporative System.

* Check the Monitor Status displayed on the Techstream.

HINT
If Incomplete is displayed, the monitor is not complete. Make sure that the preconditions have been met, and perform the Monitor Conditions procedure again.

MONITOR RESULT

Refer to Checking Monitor Status Mode 6 Data.
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