Inspection Procedure

CONFIRM DTC

Turn the ignition switch OFF and wait 10 seconds.
Turn the ignition switch to the ON position.
Turn the ignition switch off and wait 10 seconds.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position and press the intelligent tester switch on.
Enter the following menus: DIAGNOSIS/ ENHANCED OBD II/ DTC INFO/ CURRENT CODES.

Confirm the DTCs and freeze frame data.

EVAP Related DTCs

DTC REFERENCE

DTC No.	Monitoring Item
P043E	0.02 inch orifice low flow
P043F	0.02 inch orifice high flow
P0441	EVAP VSV close stuck EVAP VSV open stuck Insufficient purge flow
P1420	0.02 inch leak from canister
P1421	Gross leak from canister
P1422	0.02 inch leak from fuel tank
P1423	Gross leak from fuel tank
P2401	Vacuum pump OFF stuck
P2402	Vacuum pump ON stuck
P2419	Vent valve ON (close) stuck
P2420	Vent valve OFF (vent) stuck
P2450	Fuel vapor-containment valve open stuck
P2451	Fuel vapor-containment valve close stuck

DTC and Malfunction Cross-Reference

DTC AND MALFUNCTION CROSS-REFERENCE

Malfunction	Output DTC
0.02 inch orifice low flow	P043E P043F P2401 P2402 P2419
0.02 inch orifice high flow	P043E P043F P2401 P2402 P2419
Vacuum pump OFF stuck	P043E P043F P2401 P2402 P2419
Vacuum pump ON stuck	P043E P043F P2401 P2402 P2419
Vent valve ON (closed) stuck	P043E P043F P2401 P2402 P2419
Vent valve OFF (vent) stuck	P2420
Insufficient purge flow	P0441
EVAP VSV open stuck	P0441 P1421
EVAP VSV close stuck	P0441
0.02 inch leak from canister	P1420
Gross leak from canister	P0441 P1421
0.02 inch leak from fuel tank	P1422
Gross leak from fuel tank	P1423
Fuel vapor-containment valve open stuck	P1423 P2450
Fuel vapor-containment valve close stuck	P2451

PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

NOTE:

In the EVAP SYSTEM CHECK (AUTO OPERATION), a series of 6 EVAP SYSTEM CHECK steps are performed automatically. A maximum of 15 minutes is required.
Do not perform the EVAP SYSTEM CHECK when the fuel tank is more than 90% full because the cut-off valve may be closed and the leak check of the fuel tank is unavailable.
Do not run the engine.
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 EVAP SYSTEM CHECK, keep the temperature below 35C (95°F).

Clear the DTCs with the intelligent tester.
Remove the fuel tank cap and reinstall the fuel cap.
Enter the following menus: DIAGNOSIS/ ENHANCED OBD-II/ SYSTEM CHECK/ EVAP SYS CHECK/ AUTO OPERATION.

After the EVAP SYSTEM CHECK is completed, check for pending DTCs. Enter the following menus: DIAGNOSIS/ ENHANCED OBD-II/ DTC INFO/ PENDING DTC.

Result

RESULT REFERENCE

DTC	Conclusion	Proceed to
A pending DTC is set	A malfunction occurs and troubleshooting can be performed	A
A pending DTC is not set	No malfunctions occur and it Is difficult to perform troubleshooting	B
A pending DTC is not set and any of the currant DTCs (P1422, P1423, or P2450) IS set	DTCs can be set because the fuel cap Is not tightened firmly	C

B: Go to step 34

C: END

A: Go to Next Step

IDENTIFY TROUBLE AREAS USING DTC

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

Result

RESULT REFERENCE

Malfunction	Output DTC	Proceed to
0.02 Inch orifice low flow	P043E, P043F, P2401, P2402 and P2419	B
0.02 Inch orifice high flow	P043E, P043F, P2401, P2402 and P2419	B
Vacuum pump OFF stuck	P043E, P043F, P2401, P2402 and P2419	B
Vacuum pump ON stuck	P043E, P043F, P2401, P2402 and P2419	B
Vent valve ON (closed) stuck	P043E, P043F, P2401, P2402 and P2419	B
Vent valve OFF (vent) stuck	P2420	C
Insufficient purge flow	P0441	A
EVAP VSV open stuck	P0441 and P1421	A
EVAP VSV close stuck	P0441	A
0.02 inch leak from canister	P1420	D
Gross leak from canister	P0441 and P1421	A
0.02 inch leak from fuel tank	P1422	A
Gross leak from fuel tank	P1423	A
Fuel vapor-containment valve open stuck	P1423 and P2450	A
Fuel vapor-containment valve close stuck	P2451	A

B: Go to step 11

C: Go to step 15

D: Go to step 6

A: Go to Next Step

IDENTIFY TROUBLE AREAS USING DTC

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

Result

RESULT REFERENCE

Malfunction	Output DTC	Proceed to
Insufficient purge flow	P0441	A
EVAP VSV open stuck	P0441, P1421	B
EVAP VSV close stuck	P0441	A
Gross leak from canister	P0441, P1421	B
0.02 inch leak from fuel tank	P1422	C
Gross leak from fuel tank	P1423	C
Fuel vapor-containment valve open stuck	P1423, P2450	c
Fuel vapor-containment valve close stuck	P2451	D

B: Go to step 15

C: Go to step 21

D: Go to step 23

A: Go to Next Step

CHECK VACUUM HOSE (EVAP VSV - THROTTLE BODY)

Disconnect the hose (to intake air connector) from the EVAP VSV.

Fig 1: Identifying Vacuum Hose And EVAP VSV
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Start the engine.

Use your finger and confirm that the EVAP VSV has suction.

Result

RESULT REFERENCE

Result	Proceed to
There Is suction. Conclusion: EVAP hose between EVAP VSV and throttle body is normal.	OK
There Is no suction. Conclusion: Problem In throttle body or hose between EVAP VSV and throttle body	NG

NG: Go to step 33

OK: Go to Next Step

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (EVAP VSV)
1. Disconnect the hose (to canister) from the EVAP VSV.
  
  Fig 2: Identifying EVAP VSV
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Start the engine.
3. Enter the following menus on the intelligent tester: ACTIVE TEST/ EVAP VSV (ALONE).
4. Turn the EVAP VSV OFF (EVAP VSV: OFF).
5. Use your finger and confirm that the EVAP VSV has no suction.
6. Turn the EVAP VSV ON (EVAP VSV: ON).
7. Turn the EVAP VSV ON (EVAP VSV: ON).
  OK: EVAP VSV functions normally
OK: Go to step 19

NG: Go to Next Step

CHECK EVAP VSV

Remove the EVAP VSV.

Fig 3: Checking EVAP VSV
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Apply compressed air to the EVAP VSV, and confirm that no air flows from A to B as shown in the illustration.
Apply battery voltage to the EVAP VSV.

While applying compressed air, confirm that air flows from A to B as shown in the illustration.

Result

RESULT REFERENCE

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

NG: Go to step 27

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (EVAP VSV - IGCT NO. 4 FUSE)

Disconnect the V4 EVAP VSV connector.

Fig 4: Identifying EVAP VSV Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Turn the ignition switch to the ON position.

Measure the voltage between terminal 1 of the V4 connector and body ground.

Result

RESULT REFERENCE

Result	Proceed to
11 to 14 V Conclusion: No problem exists In power source's wires.	OK
Except above Conclusion: Problem In wire or connector between EVAP VSV and ECM (Included In HV control ECU).	NG

NG: Go to step 32

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (EVAP VSV - HV CONTROL ECU)

Disconnect the H15 HV control ECU connector and the V4 EVAP VSV connector.

Fig 5: Disconnecting H15 HV Control ECU Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
H15-17 (PRG) - V4-2	10 Ω or less
H15-17 (PRG) or V4-2 - Body ground	10 kΩ or more

NG: Go to step 32

OK: Go to Next Step

REPLACE HV CONTROL ECU
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
CHECK PUMP MODULE (VACUUM PUMP POWER SOURCE CIRCUIT)
1. Turn the ignition switch off.
2. Remove the canister lower cover.
3. Disconnect the L2 canister connector.
  
  Fig 6: Identifying Canister Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Connect the intelligent tester to the DLC3.
5. Turn the ignition switch to the ON position.
6. Enter the following menus: ACTIVE TEST/ VACUUM PUMP (ALONE).
7. Turn the vacuum pump on using the tester.
8. Measure the voltage between terminals 1 and 6 of the L2 connector.
  Standard voltage: 10 to 14 V
OK: Go to step 15

NG: Go to Next Step
CHECK HARNESS AND CONNECTOR (VACUUM PUMP - BODY GROUND)
1. Turn the ignition switch off.
2. Measure the resistance between terminal L2-6 and body ground.
  Standard resistance: Below 10 Ω
  
  Fig 7: Identifying Canister Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: Go to step 32

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (VACUUM PUMP - HV CONTROL ECU)

Disconnect the H13 connector.

Fig 8: Disconnecting H13 HV Control ECU Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
H13-6 (MPMP) - L2-1	10 Ω or less
H13-6 (MPMP) or L2-1 - Body ground	10 kΩ or more

NG: Go to step 32

OK: Go to Next Step

REPLACE HV CONTROL ECU
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
CHECK PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)
1. Turn the ignition switch off.
2. Remove the canister lower cover.
3. Disconnect the L2 canister connector.
  
  Fig 9: Identifying Canister Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Connect the intelligent tester to the DLC3.
5. Turn the ignition switch to the ON position.
6. Enter the following menus: ACTIVE TEST/ VACUUM PUMP (ALONE).
7. Turn the vacuum pump on using the tester.
8. Measure the voltage between terminals 8 and 9 of the L2 connector and body ground.
  Standard voltage: 10 to 14 V
OK: Go to step 28

NG: Go to Next Step
CHECK HARNESS AND CONNECTOR (VENT VALVE - BODY GROUND)
1. Turn the ignition switch off.
2. Measure the resistance between terminal L2-9 and body ground.
  Standard resistance: Below 10 Ω
  
  Fig 10: Identifying Canister Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: Go to step 32

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (VENT VALVE - HV CONTROL ECU)

Disconnect the H13 connector.

Fig 11: Disconnecting H13 HV Control ECU Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
H13-16 (VPMP) - L2-8	10 Ω or less
H13-16 (VPMP) or L2-8 - Body ground	10 kΩ or more

NG: Go to step 32

OK: Go to Next Step

REPLACE HV CONTROL ECU
CHECK HOSES (EVAP VSV - CANISTER)
1. Remove the canister cover.
2. Connect the pressure gauge (SST) to the canister pump module with the adapter.
  
  Fig 12: Connecting Pressure Gauge To Canister Pump Module With Adapter
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Pressurize the EVAP system to between 24 and 28 mmHg.
  NOTE: More than 35 mmHg of pressure will damage the EVAP system. Pay attention to the pressure.
4. Apply soapy water to the piping and connecting parts of the EVAP system. Look for the area where bubbles appear.
  HINT:
  - If the system has leaks, a whistling sound will be heard.
  - Disconnect the hose between the canister and fuel tank from the canister. Close the canister on the area where the hose was connected and perform an inspection. The fuel tank can be eliminated from the suspected areas for leak checks.
REPLACE MALFUNCTIONING PART
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
CHECK FUEL TANK CAP ASSEMBLY
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: Go to step 31

OK: Go to Next Step
CHECK HOSES (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK)
1. Remove the canister cover.
2. Connect the pressure gauge (SST) to the canister pump module with the adapter.
  
  Fig 13: Connecting Pressure Gauge To Canister Pump Module With Adapter
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the intelligent tester to the DLC3-
4. Turn the ignition switch to the ON position.
5. Enter the following menus: ACTIVE TEST / FVCV.
6. Turn the fuel vapor-containment valve ON using the tester.
7. Pressurize the EVAP system to between 24 and 28 mmHg.
  NOTE: More than 35 mmHg of pressure will damage the EVAP system. Pay attention to the pressure.
8. Apply soapy water to the piping and connecting parts of the EVAP system. Look for the area where bubbles appear.
  HINT:
  - If the system has leaks, a whistling sound will be heard.
  - Disconnect the hose between the canister and fuel tank from the canister. Close the canister on the area where the hose was connected and perform an inspection. The fuel tank can be eliminated from the suspected areas for leak checks.
CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)
1. Turn the ignition switch off.
2. Disconnect the BO1 wire harness to wire harness connector.
  
  Fig 14: Identifying BO1 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the intelligent tester to the DLC3.
4. Turn the ignition switch to the ON position.
5. Enter the following menus: ACTIVE TEST / TANK CLS VALVE.
6. Turn the fuel vapor-containment valve ON using the tester.
7. Measure the voltage between terminals 3 and 7 of the BO1 connector.
  Standard voltage: 10 to 14 V
OK: Go to step 29

NG: Go to Next Step
CHECK HARNESS AND CONNECTOR (TANK CLOSE VALVE - IGCT NO. 4 FUSE)
1. Turn the ignition switch to the ON position.
2. Measure the voltage between terminal BO1-3 and body ground.
  Standard voltage: 10 to 14 V
  
  Fig 15: Identifying BO1 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: Go to step 32

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (TANK CLOSE VALVE - HV CONTROL ECU)

Disconnect the H13 HV control ECU connector.

Fig 16: Disconnecting H13 HV Control ECU Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
H13-12 (CCV2) - BO1-3	10 Ω or less
H13-12 (CCV2) or BO1-3 - Body ground	10 kΩ or more

NG: Go to step 32

OK: Go to Next Step

REPLACE HV CONTROL ECU
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPLACE EVAP VSV
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPLACE CANISTER ASSEMBLY
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)

CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS)

Remove the fuel tank assembly. (See REMOVAL )
Disconnect the fuel vapor-containment valve connector.

Fig 17: Identifying Tank Wire Harness Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
BO1-3 - V16-1	Below 1 Ω
BO1-7 - V16-2	Below 1 Ω

Reinstall fuel tank assembly. (See INSTALLATION )

NG: Go to step 32

OK: Go to Next Step

REPLACE FUEL VAPOR-CONTAINMENT VALVE
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPLACE FUEL TANK CAP ASSEMBLY
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPAIR OR REPLACE HARNESS OR CONNECTOR
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPAIR OR REPLACE VACUUM HOSE (EVAP VSV - THROTTLE BODY)
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION)

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.

Clear the DTCs (See DTC CHECK / CLEAR ).
Remove the fuel tank cap and reinstall the fuel cap.

Select the following menu items: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / MANUAL OPERATION.

NOTE:

Fig 18: Intelligent Tester Display - EVAP SYS CHECK

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

In the EVAP SYSTEM CHECK (AUTO OPERATION), the series of 9 EVAP SYSTEM CHECK steps is performed automatically. It takes a maximum of approximately 18 minutes.
Do not perform the EVAP 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 (95F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the EVAP SYSTEM CHECK, keep the temperature below 35°C (95F).

Tester Display

TESTER DISPLAY DETAILS

Display	Details
Atmosphere 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)
VACUUM PUMP	Vacuum 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 vacuum pump operating time

Manual Operation Step

MANUAL OPERATION STEPS REFERENCE

Step	Operations
1. Arm Press Check 1	Atmospheric pressure measurement
2. Ref Press Check 1	First 0.02 inch leak pressure measurement
3. Leak Check	EVAP system pressure measurement
4. Purge VSV Check	EVAP VSV monitor
5. Ref Press Check 2	Second 0.02 inch leak pressure measurement
6. Resetting	Resetting
7. Tank Leak Check	Fuel tank pressure measurement
8. Ref Press Check 3	Third 0.02 inch leak pressure measurement

Timing Chart

Fig 19: EVAP Pressure Graph (Manual Operation)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 1)
1. Select step 1 and wait 10 seconds.

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 2)

Perform step 2.
Check the EVAP pressure 2 seconds after the vacuum pump is activated*.
*: The vacuum pump begins to operate at the start of step 2.

Fig 20: EVAP Pressure Graph (Manual Operation Step 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the EVAP pressure again when it has stabilized. This pressure is the first reference pressure standard.

Fig 21: EVAP Pressure Graph (Manual Operation Step 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

RESULT REFERENCE

Test Results	Suspected Trouble Areas	Proceed To
EVAP pressure In step (b) Is between -4.85 kPa and -1.06 kPa (-36.38 mmHg and -7.95 mmHg)	Not yet determined	A
EVAP pressure in step (b) Is -1.06 kPa (-7.95 mmHg) or more	0.02 Inch orifice high-flow Vacuum pump stuck OFF	B
EVAP pressure In step (b) Is below -4.85 kPa (-36.38 mmHg)	0.02 inch orifice clogged	C

B: Go to step 11

C: Go to step 28

A: Go to Next Step

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 3)

Perform step 3.

Check the EVAP pressure change in step 3.

Fig 22: EVAP Pressure Graph (Manual Operation Step 3)

Result

RESULT REFERENCE

Test Results	Suspected Trouble Areas	Proceed To
EVAP pressure change In step (b) Is 0.3 kPa (2.25 mmHg) or more	Not yet determined	A
EVAP pressure In step (b) Is below 0.3 kPa (2.25 mmHg)	Vent valve OFF stuck	B

Check the fuel tank pressure change in step 3.

Fig 23: EVAP Pressure Graph (Manual Operation Step 3)

Result

RESULT REFERENCE

Test Results	Suspected Trouble Areas	Proceed To
Fuel tank pressure in step (b) is below 0.5 kPa (3.75 mmHg)	Not yet determined	A
Fuel tank pressure change in step (b) is 0.5 kPa (3.75 mmHg) or more	Fuel vapor-containment valve ON (open) stuck	C

Check the EVAP pressure again when it has stabilized. This pressure is the canister leak pressure standard.

Compare the first reference pressure with the canister leak pressure.

Fig 24: EVAP Pressure Graph (Manual Operation Step 3)

Result

RESULT REFERENCE

Test Results	Suspected Trouble Areas	Proceed To
Lower than first reference pressure	Not yet determined	A
First reference pressure or higher	EVAP VSV open stuck Leakage from line between EVAP VSV and canister	D

B: Go to step 15

C: Go to step 23

D: Go to step 6

A: Go to Next Step

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 4)

Perform step 4.

Check the EVAP pressure change in step 3.

Fig 25: EVAP Pressure Graph (Manual Operation Step 4)

Result

RESULT REFERENCE

Test Results	Suspected Trouble Areas	Proceed To
EVAP pressure change In step (b) is 0.3 kPa (2.25 mmHg) or more	Not yet determined	A
EVAP pressure In step (b) Is below 0.3 kPa (2.25 mmHg)	Vent valve OFF stuck	B

B: Go to step 5

A: Go to Next Step

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 5)
1. Perform step 5 and wait 60 seconds.
2. Check the EVAP pressure. This pressure is the second reference pressure standard.
PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 6)
1. Perform step 6 and wait 5 seconds.

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 7)

Perform step 7.
Check that the tank pressure and EVAP pressure change.

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

Fig 26: EVAP Pressure Graph (Manual Operation Step 7)

Result

RESULT REFERENCE

Test Results	Suspected Trouble Areas	Proceed To
Tank pressure change Is more Wan 0.9 kPa (7 mmHg) and EVAP pressure is more than -1.0 kPa (-7 mmHg)	Not yet determined	A
Tank pressure change is less than 0.9 kPa (7 mmHg) and EVAP pressure is less than -1.0 kPa (-7 mmHg)	Tank close valve OFF (close) stuck	B

B: Go to step 23

A: Go to Next Step

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 8)

Perform step 8 and wait 60 seconds.
Check the EVAP pressure. This pressure is the third reference pressure standard.

Compare the tank pressure checked in step 41 with the third reference pressure.

Fig 27: EVAP Pressure Graph (Manual Operation Step 8)

Result

RESULT REFERENCE

Test Results	Suspected Trouble Areas	Proceed To
Lower than third reference pressure	Not yet determined	A
Third reference pressure or higher	Leakage from line between tank close valve and fuel tank	B

B: Go to step 30

A: Go to Next Step

PERFORM CONFIRMATION DRIVING PATTERN
1. KEY-OFF MONITOR DRIVE PATTERN
  1. Connect the intelligent tester to the DLC3.
  2. Confirm the following conditions are satisfied:
    - The fuel level is less than 90%.
    - The altitude is less than 8,000 ft. (2,400 m).
    - 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)
  3. Perform the drive pattern:
    1. Allow the engine to idle for 5 minutes or more.
    2. Turn the ignition switch off and wait 6 hours.
  4. Check the monitor status with the intelligent tester.
2. PURGE FLOW MONITOR DRIVE PATTERN (P0441)
  1. Connect the intelligent tester 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. Warm up the engine until the ECT reaches 75°C (167°F) or more.
    3. Run the engine at 3,000 rpm once.
    4. Allow the engine to idle and turn on the air conditioning (A/C) for 1 minute.
  4. Check the monitor status with the intelligent tester.
NEXT: PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)