Inspection Procedure

CONFIRM DTC

Turn the power switch OFF and wait 10 seconds.
Turn the power switch ON (IG).
Turn the power switch OFF and wait 10 seconds.
Connect the intelligent tester to the DLC3.
Turn the power switch ON (IG) and turn the tester ON.
Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.

Confirm the DTCs.

DTC and Malfunction Cross-Reference

DTC AND MALFUNCTION CROSS-REFERENCE

DTC	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

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 35°C (95°F).

Clear the DTC 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 the DTC.

Result

RESULT CHART

DTC	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: GO TO step 34

C: END

A: GO TO Next Step

IDENTIFICATION OF TROUBLE AREAS USING DTC

Result:

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

RESULT CHART

DTC	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: GO TO step 11

A: GO TO Next Step

IDENTIFICATION OF TROUBLE AREAS USING DTC

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

Result:

RESULT CHART

DTC	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	B
P1422	Small leak from fuel tank	C
P1423	Gross leak from fuel tank	C
P1423 and P2450	FVCV open stuck	D
P2451	FVCV close stuck	D

B: GO TO step 18

C: GO TO step 21

D: GO TO step 23

A: GO TO Next Step

CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD)

Disconnect the hose (to intake manifold) from the Purge VSV.
Put the engine in inspection mode (see INSPECTION MODE PROCEDURE ).

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

Fig 1: Identifying Purge VSV

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

RESULT CHART

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: GO TO step 33

OK: GO TO Next Step

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (PURGE VSV)
1. Disconnect the hose (to canister) from the Purge VSV.
2. Put the engine in inspection mode (see INSPECTION MODE PROCEDURE ).
3. Enter the following menu: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / EVAP VSV (ALONE).
4. Turn the Purge VSV OFF (Purge VSV: OFF).
5. Use your finger and 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
  
  Fig 2: Identifying Purge VSV
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO step 33

NG: GO TO Next Step

CHECK PURGE VSV

Remove the purge VSV.
Apply compressed air to the purge VSV, confirm that no air flows from A to B as shown in the illustration.
Apply battery voltage to the purge VSV.

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

Fig 3: Applying Battery Voltage To Purge VSV

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

RESULT CHART

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: GO TO step 27

OK: GO TO Next Step

CHECK HARNESS AND CONNECTOR (PURGE VSV - EFI NO.2 FUSE)

Disconnect the E18 purge VSV connector.
Turn the power switch ON (IG).

Measure the voltage between terminal 1 of the E18 connector and the body ground.

Fig 4: Identifying E18 Purge VSV Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

RESULT CHART

Result	Proceed to
11 to 14 V Conclusion: No problem exists on power source's wires.	OK
Except above Conclusion: Problem in wire or connector between purge VSV and ECM.	NG

NG: GO TO step 32

OK: GO TO Next Step

CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

Disconnect the E83 ECM connector and the E18 purge VSV connector.

Measure the resistance.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
PRG (E83-81) - E18-2	10 Ω or less
PRG (E83-81) - Body ground	10 kΩ or more
E18-2 - Body ground	10 kΩ or more

Fig 5: Identifying E83 ECM Connector And E18 Purge VSV Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: GO TO step 32

OK: GO TO Next Step

REPLACE ECM
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
PERFORM ACTIVE TEST BY INTELLIGENT TESTER (VACUUM PUMP)
1. Connect the intelligent tester to DLC3.
2. Turn the power switch ON (IG).
3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP.
4. Turn the leak detection pump ON with the tester.
5. Touch the canister pump module and check if the pump is moving.
  OK:
  
  Pump operates
NG: GO TO step 13

OK: GO TO Next Step
PERFORM ACTIVE TEST BY INTELLIGENT TESTER (VENT VALVE)
1. Remove the canister lower cover.
2. Connect the intelligent tester to DLC3.
3. Turn the power switch ON (IG).
4. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VENT VALVE.
5. Touch the canister pump module, use the tester to turn the vent valve ON and OFF, and check if the vent valve is moving.
  OK:
  
  Vent valve vibration can be felt.
OK: GO TO step 28

NG: GO TO step 16
PERFORM ACTIVE TEST BY INTELLIGENT TESTER (VACUUM PUMP)
1. Turn the power switch OFF.
2. Remove the canister lower cover.
3. Disconnect the canister pump module connector.
4. Connect the intelligent tester to DLC3.
5. Turn the power switch ON (IG).
6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP.
7. Turn the leak detection pump ON with the tester.
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 tester.
  Standard voltage:
  
  10 to 14V
  
  Fig 6: Locating Canister Pump Module Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: GO TO step 15

OK: GO TO Next Step
CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)
1. Remove the canister lower cover.
2. Disconnect the canister pump module connector.
3. Measure the resistance between MGND terminal of the canister pump module and the body ground.
  Standard resistance:
  
  Below 1 Ω
  
  Fig 7: Locating Canister Pump Module Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO step 28

NG: GO TO step 32

CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)

Disconnect the A53 ECM connector.
Disconnect the canister pump module connector.

Measure the resistance between MPMP terminal of the ECM connector and MTRB terminal of the canister pump module connector.

Standard resistance

w/o Active Stabilizer

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
MPMP (A53-16) - MTRB (V17-1)	10 Ω or less
MPMP (A53-16) or MTRB (V17-1) - Body ground	10 kΩ or more

w/ Active Stabilizer

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
MPMP (A53-16) - MTRB (x1-1)	10 Ω or less
MPMP (A53-16) or MTRB (x1-1) - Body ground	10 kΩ or more

Fig 8: Identifying A53 ECM Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO step 26

NG: GO TO step 32

INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

Turn the power switch OFF.
Remove the canister lower cover.
Disconnect the canister pump module connector.
Apply the battery voltage to VLVB and VGND terminals of the canister pump module.

Touch the canister pump module to confirm the vent valve operation.

Fig 9: Identifying Canister Pump Module Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

RESULT CHART

Test Results	Suspected Trouble Areas	Proceed to
Operating	Wire harness between vent valve and ECM ECM	A
Not operating	Vent valve	B

Reconnect the canister connector.

B: GO TO step 28

A: GO TO Next Step

CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

Disconnect the A53 ECM connector.
Disconnect the canister pump module connector.

Check the resistance between VPMP terminal of the ECM connector and VGND terminal of the canister pump module connector.

Standard resistance

w/o Active Stabilizer

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
VPMP (A53-17) - VGND (V17-8)	10 Ω or less
VPMP (A53-17) or VGND (V17-8) - Body ground	10 kΩ or more

w/ Active Stabilizer

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
VPMP (A53-17) - VGND (x1-8)	10 Ω or less
VPMP (A53-17) or VGND (x1-8) - Body ground	10 kΩ or more

Reconnect the ECM connector.
Reconnect the canister pump module connector.

Fig 10: Identifying Canister Pump Module Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO step 26

NG: GO TO step 32

LOCATE EVAP LEAK PART (PURGE VSV - CANISTER)

Fig 11: Identifying Canister Filter And EVAP Vent Hose
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
REPLACE MALFUNCTIONING PART
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
LOCATE EVAP LEAK PART (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK)

Fig 12: Identifying Canister Filter And EVAP Vent Hose
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the vent hose.
2. Connect the EVAP tester to the vent hose with the adapter.
3. Connect the intelligent tester to DLC3.
4. Turn the power switch ON (IG).
5. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FVCV.
6. Turn the Fuel vapor-containment valve ON with the tester.
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.
REPLACE MALFUNCTIONING PART
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)
1. Disconnect the eV1 wire harness to wire harness connector.
2. Connect the intelligent tester to the DLC3.
3. Turn the power switch ON (IG).
4. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / TANK CLS VALVE.
5. Turn the fuel vapor-containment valve ON with the tester.
6. Measure the voltage between terminals 5 and 6 of the eV1 connector.
  Standard voltage:
  
  10 to 14 V
  
  Fig 13: Locating EV1 Wire Harness To Wire Harness Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO step 29

NG: GO TO Next Step
CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - EFI NO.2 FUSE)
1. Disconnect the eV1 wire harness to wire harness connector.
2. Measure the voltage between terminal eV1-6 and the body ground.
Standard voltage:

10 to 14 V

Fig 14: Identifying EV1 Wire Harness To Wire Harness Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: GO TO step 32

OK: GO TO Next Step

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

Disconnect the A53 ECM connector.
Disconnect the eV1 wire harness to wire harness connector.

Measure the resistance.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
CCV2 (A53-50) - eV1-5	10 Ω or less
CCV2 (A53-50) or eV1-5 - Body ground	10 kΩ or more

Fig 15: Identifying A53 ECM Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: GO TO step 32

OK: GO TO Next Step

REPLACE ECM
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPLACE PURGE VSV
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPLACE CANISTER ASSEMBLY
1. Replace the canister assembly (see REMOVAL ).
  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.
  
  Fig 16: Identifying Canister Assembly Inspection Area
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.

Measure the resistance.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
eV1-5 - e2-1 (CCV)	Below 1 Ω
eV1-6 - e2-2 (+B)	Below 1 Ω

Reinstall fuel tank assembly (see INSTALLATION ).

Fig 17: Locating Fuel Vapor-Containment Valve Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: GO TO step 32

OK: GO TO Next Step

REPLACE FUEL VAPOR-CONTAINMENT VALVE
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPLACE FUEL TANK CAP
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPAIR OR REPLACE HARNESS AND CONNECTOR
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
REPAIR OR REPLACE VACUUM HOSE
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 DTCs (see DTC CHECK/CLEAR ).
Remove the fuel tank cap and reinstall the fuel cap.

Enter the following menus: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / MANUAL OPERATION.

NOTE:

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 (95°F) 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 (95°F).

Tester Display

TESTER DISPLAY REFERENCE

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

MANUAL OPERATION STEP CHART

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

Fig 18: EVAP System Timing Chart - Manual Operation

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 1)
1. Select the 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 leak detection pump is activated*.
*: The leak detection pump begins to operate at the start of step 2.

Fig 19: EVAP Pressure Chart (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 20: EVAP Pressure Chart (Manual Operation Step 2)

Result

RESULT CHART

Test Result	Suspected Trouble Area	Proceed to
EVAP pressure in step (b) is between 723.6 mmHg-a and 752 mmHg-a	Not yet determined	A
EVAP pressure in step (b) is 752 mmHg-a or more	Reference orifice high-flow Leak detection pump stuck OFF	B
EVAP pressure in step (b) Is below 723.6 mmHg-a	Reference orifice clogged	C

B: GO TO step 11

C: GO TO step 28

A: PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 3)

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 3)

Perform step 3.

Check the EVAP pressure change in step 3.

Fig 21: EVAP Pressure Chart (Manual Operation Step 3)

Result

RESULT CHART

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

Check the fuel tank pressure change in step 3.

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

Result

RESULT CHART

Test Result	Suspected Trouble Area	Proceed to
Fuel tank pressure in step (b) is below 763.7 mmHg-a	Not yet determined	A
Fuel tank pressure change in step (b) is 763.7 mmHg-a or more	Fuel vapor-containment valve (FVCV) 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 23: EVAP Pressure Chart (Manual Operation Step 3)

Result

RESULT CHART

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: GO TO step 16

C: GO TO step 23

D: GO TO step 18

A: GO TO Next Step

PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION STEP 4)

Perform step 4.

Check the EVAP pressure change in step 4.

Fig 24: EVAP Pressure Chart (Manual Operation Step 4)

Result

RESULT CHART

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: 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 25: EVAP Pressure Chart (Manual Operation Step 7)

Result

RESULT CHART

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: 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 8 with the third reference pressure.

Fig 26: EVAP Pressure Chart (Manual Operation Step 8)

Result

RESULT CHART

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: GO TO step 20

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).
    - Driven vehicle in the city area or on free-way 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 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. Driven vehicle in the city area or on free-way for 10 minutes or more.
  4. Check the monitor status with the intelligent tester.
PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)