EVAP System [08/2022 - ]: Procedure

1. Turn the engine switch off and wait for 10 seconds.
2. Turn the engine switch on (IG).
3. Turn the engine switch off and wait for 10 seconds.
4. Connect the Techstream to the DLC3.
5. Turn the engine switch on (IG).
6. Turn the Techstream on.
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8. Confirm DTCs and freeze frame data.

   If any EVAP system DTCs are stored, the malfunctioning area can be determined using the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.

Result: 

NEXT 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - ] ).
5. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
6. 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 DTCs are displayed, perform the Monitor Confirmation (see "Diagnostic Help" menu). After this confirmation, check for pending DTCs. If no DTCs are displayed, the EVAP system is normal.

Result: 

NEXT 

See step  3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - ] ).
5. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode.

Result: 

NEXT 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the EVAP pressure in step 1/6.
   RESULT
   
   

   DTC No.*1	Result	Trouble Area	Proceed to
   -	Virtually no variation in EVAP pressure	Not yet determined	A
   P0451	EVAP pressure fluctuates by +/-0.3 kPa-g (+/-2.25 mmHg-g) or more	Canister pressure sensor noise	B
   (P0452 or P0453)*2	EVAP pressure is below 42.11 kPa (abs) [315.85 mmHg (abs)] or 123.761 kPa (abs) [928.28 mmHg (abs)] or more EVAP pressure deviates +/-10 kPa [+/-75 mmHg] from actual atmosphere pressure*3	Canister pressure sensor noise	C

   • *1: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.
   • *2: If the canister pressure sensor circuit has an open or short, DTC P0452 or P0453 is stored 0.5 seconds after the engine switch is turned to ON.

     HINT: 

     *3: Canister pressure sensor standard output range is 70 to 110 kPa (abs) [525 to 825 mmHg (abs)]. This varies by weather.

Result: 

B 

See step  39

Result: 

C 

See step  12

Result: 

A 

See step  5

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1. Check the EVAP pressure in steps 1/6 and 2/6.
   RESULT
   
   

   DTC No.*	Result	Trouble Area	Proceed to
   -	Virtually no variation in EVAP pressure during step 1/6. Then decreases to reference pressure.	Not yet determined	A
   P2402	Small difference between EVAP pressures during steps 1/6 and 2/6	Leak detection pump stuck ON	B

   *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.

   HINT: 

   The first reference pressure is the value determined in step 2/6.

Result: 

B 

See step  34

Result: 

A 

See step  6

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HINT: 

Make a note of the pressures checked in steps (a) and (b) below.

1. (a) Check the EVAP pressure 4 seconds after the leak detection pump is activated*.

   *: The leak detection pump begins to operate as step 1/6 finishes and step 2/6 starts.

2. (b) Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure.
   RESULT
   
   

   DTC No.*	Result	Trouble Area	Proceed to
   -	EVAP pressure in step (b) between -4.85 kPa-g and -1.057 kPa-g (-36.4 mmHg-g and -7.93 mmHg-g)	Not yet determined	A
   P043F and P2401	EVAP pressure in step (b) -1.057 kPa-g (-7.93 mmHg-g) or more	Reference orifice high-flow Leak detection pump stuck OFF	B
   P043E	EVAP pressure in step (b) below -4.85 kPa-g (-36.4 mmHg-g)	Reference orifice clogged	C
   P2419	EVAP pressure in step (a) more than -0.25 kPa-g (-1.88 mmHg-g)	Vent valve stuck closed Leak detection pump performance deteriorates Leak detection pump circuit malfunctioning (large resistance exists in the circuit)	D

   *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.

Result: 

B 

See step  11

Result: 

C 

See step  39

Result: 

D 

See step  13

Result: 

A 

See step  7

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1. Check the EVAP pressure increase in step 3/6.
   RESULT
   
   

   DTC No.*	Result	Trouble Area	Proceed to
   -	EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more within 10 seconds of proceeding from step 2/6 to step 3/6	Not yet determined	A
   P2420	No variation in EVAP pressure despite proceeding from step 2/6 to step 3/6	Vent valve stuck open (vent) Canister (charcoal filter inside canister) clogged Trap canister (filter inside canister clogged)	B
   P0451	No variation in EVAP pressure during steps 1/6 through 3/6	Canister pressure sensor output value stuck Vent valve broken (valve split in two) Leak detection pump performance deteriorates Leak detection pump circuit malfunctioning (large resistance exists in the circuit)	C

   *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.

Result: 

B 

See step  27

Result: 

C 

See step  15

Result: 

A 

See step  8

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1. Check the EVAP pressure in step 3/6.
   RESULT
   
   

   DTC No.*	Result	Trouble Area	Proceed to
   -	Other than below	Not yet determined	A
   P00FE	Within 22.54 seconds after step 3/6 begins, the EVAP pressure becomes less than -2.57 kPa(gauge) (-0.37 psi(gauge)) HINT:  Vary with first reference pressure.	Fuel tank vent hose clogged Fuel tank assembly (roll-over valve, cut-off valve) clogged Canister (charcoal filter inside canister) clogged	B

   1. *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.

   HINT: 

   A few minutes are required for the EVAP pressure to become saturated. When there is little fuel in the fuel tank, it takes up to 15 minutes.

Result: 

B 

See step  46

Result: 

A 

See step  9

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1. Check the EVAP pressure in step 4/6.
   RESULT
   
   

   DTC No.*1	Result	Trouble Area	Proceed to
   -	EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more within 10 seconds of proceeding from step 3/6 to step 4/6	Not yet determined	A
   P0441*2	EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more within 10 seconds of proceeding from step 3/6 to step 4/6	Purge VSV Purge VSV circuit Problems in EVAP hose between purge VSV and intake manifold Problems in EVAP hose between canister and purge VSV ECM	B
   P0441	Variation in EVAP pressure less than 0.3 kPa-g (2.25 mmHg-g) for 10 seconds after proceeding from step 3/6 to step 4/6	Purge VSV stuck closed Purge VSV circuit Canister (charcoal filter inside canister) clogged Problems in EVAP hose between purge VSV and intake manifold Problems in EVAP hose between canister and purge VSV ECM	C

   • *1: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.
   • *2: This result suggests that due to purge line blockage or purge VSV malfunction, the DTC was stored by the purge flow monitor while the engine was running, or that key-off monitor test result were nearly borderline values.

Result: 

B 

See step  22

Result: 

C 

See step  17

Result: 

A 

See step  10

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1. Check the EVAP pressure in step 5/6.
2. Compare the EVAP pressure in step 3/6 and the second reference pressure (step 5/6).
   RESULT
   
   

   DTC No.*	Result	Trouble Area	Proceed to
   -	EVAP pressure (step 3/6) lower than second reference pressure (step 5/6)	Not yet determined (no leak from EVAP system)	A
   P0441 and P0455	EVAP pressure (step 3/6) higher than [second reference pressure (step 5/6) x 0.2]	Purge VSV stuck open EVAP gross leak	B
   P0456	EVAP pressure (step 3/6) higher than second reference pressure (step 5/6)	EVAP small leak	B

   *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.

Result: 

A 

See step  44

Result: 

B 

See step  17

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the EVAP pressure in step 3/6.
   RESULT
   
   

   DTC No.*	Result	Trouble Area	Proceed to
   P043F	EVAP pressure less than [reference pressure] measured at 2/6	Reference orifice high-flow	A
   P2401	EVAP pressure almost same as [reference pressure] measured at 2/6	Leak detection pump stuck OFF	B

   *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.

   HINT: 

   The first reference pressure is the value determined in step 2/6.

Result: 

A 

See step  39

Result: 

B 

See step  32

1. Check the canister pressure sensor circuit, referring to DTC P0451 canister pressure sensor circuit inspection procedure (Refer to DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input [08/2022 - ] ).

Result: 

NEXT 

See step  52

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1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Apply the battery voltage to terminals 5 (VLVB) and 1 (VGND) of the canister pump module.
4. Touch the canister pump module to confirm the vent valve operation.
   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Trap Canister)

   RESULT
   
   

   Result	Trouble Area	Proceed to
   Operating	Wire harness or connector between vent valve and ECM Leak detection pump performance deteriorates Leak detection pump circuit malfunctioning (large resistance exists in the circuit) ECM	A
   Not operating	Vent valve	B

Result: 

B 

See step  49

Result: 

A 

See step  14

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Disconnect the ECM connector.
4. Measure the resistance according to the value(s) in the table below.
   RESULT
   
   

   Tester Connection	Condition	Specified Condition	Trouble Area	Proceed to
   G45-19 (VPMP) - R27-1 (VGND)	Always	Below 1 Ω	ECM	A
   	Always	10 kΩ or higher	Wire harness between ECM and canister pump module	B

Result: 

B 

See step  41

Result: 

A 

See step  15

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Measure the resistance according to the value(s) in the table below.
   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Canister Pump Module)

   RESULT
   
   

   Tester Connection	Condition	Specified Condition	Trouble Area	Proceed to
   R27-4 (MGND) - Body ground	Always	Below 1 Ω	Canister pump module Wire harness or connector between canister pump module and ECM ECM	A
   	Always	10 kΩ or higher	Wire harness between canister pump module and body ground	B

Result: 

B 

See step  41

Result: 

A 

See step  16

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Disconnect the ECM connector.
4. Measure the resistance according to the value(s) in the table below.
   RESULT
   
   

   Tester Connection	Condition	Specified Condition	Trouble Area	Proceed to
   G45-7 (MPMP) - R27-3 (MTRB)	Always	Below 1 Ω	Canister pump module ECM	A
   	Always	10 kΩ or higher	Wire harness between ECM and canister pump module	B

Result: 

A 

See step  49

Result: 

B 

See step  41

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1. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for EVAP Control.
2. Disconnect the hose (connected to the canister) from the purge VSV.
3. Start the engine.
4. Using the Techstream, turn off the purge VSV (Activate the VSV for EVAP Control: OFF).
5. Use your finger to confirm that the purge VSV has no suction.
6. Using the Techstream, turn on the purge VSV (Activate the VSV for EVAP Control: ON).
7. Use your finger to confirm that the purge VSV has suction.
   TEXT IN ILLUSTRATION
   
   

   *1	Purge VSV
   *2	Hose (to Canister)

   RESULT
   
   

   Result	Trouble Area	Proceed to
   No suction when purge VSV turned OFF, and suction applied when turned ON	Blockage in the purge line is considered (based on result of step 9): Problems with EVAP hose between canister and purge VSV Canister (charcoal filter inside canister) clogged Trap canister (charcoal filter inside canister) ECM	A
   	Leakage is considered (based on result of step 10): Fuel cap Leakage from EVAP line, fuel tank, or trap canister	B
   Suction applied when purge VSV turned OFF	Purge VSV stuck open	C
   No suction when purge VSV turned ON	Purge VSV stuck closed Problems with purge line between purge VSV and intake manifold	D

Result: 

B 

See step  20

Result: 

C 

See step  21

Result: 

D 

See step  23

Result: 

A 

See step  18

1. Check for blockages in the EVAP purge line between the purge VSV and canister.

   OK

   No blockages in the EVAP purge line between the purge VSV and canister.

Result: 

NG 

See step  45

Result: 

OK 

See step  19

1. Check for filter blockage in the canister (Refer to INSPECTION [08/2022 - ] )

   OK

   No blockages in the canister.

Result: 

OK 

See step  53

Result: 

NG 

See step  39

1. Check that the fuel tank cap is correctly installed and confirm that the fuel tank cap meets OEM specifications.
2. Tighten the fuel tank cap until a few click sounds are heard.

   HINT: 

   If an EVAP tester is available, check the fuel tank cap using the Techstream.

   1. Remove the fuel tank cap and install it onto a fuel tank cap adapter.
   2. Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa (24 to 28 mmHg) using an EVAP tester pump.
   3. Seal the adapter and wait for 2 minutes.
   4. Check the pressure. If the pressure is 2 kPa (15 mmHg) or more, the fuel tank cap is normal.
   RESULT
   
   

   Result	Trouble Area	Proceed to
   Fuel tank cap correctly installed	-	A
   Fuel tank cap loose	Fuel tank cap improperly installed Defective fuel tank cap Fuel tank cap does not meet OEM specifications	B
   Defective fuel tank cap	-	B
   No fuel tank cap	-	C

Result: 

A 

See step  38

Result: 

B 

See step  36

Result: 

C 

See step  37

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1. Turn the engine switch off.
2. Disconnect the purge VSV connector.
3. Disconnect the hose (connected to the canister) from the purge VSV.
4. Start the engine.
5. Use your finger to confirm that the purge VSV has no suction.
   TEXT IN ILLUSTRATION
   
   

   *1	Purge VSV
   *2	Hose (to Canister)

   RESULT
   
   

   Result	Trouble Area	Proceed to
   No suction	Wire harness or connector between purge VSV and ECM (short to ground) ECM	A
   Suction applied	Purge VSV	B

Result: 

A 

See step  26

Result: 

B 

See step  40

1. Check for blockages in the EVAP purge line between the purge VSV and canister.

   OK

   No blockages in the EVAP purge line between the purge VSV and canister.

Result: 

NG 

See step  45

Result: 

OK 

See step  23

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1. Disconnect the hose (connected to the intake manifold) from the purge VSV.
2. Start the engine.
3. Use your finger to confirm that the hose has suction.
   TEXT IN ILLUSTRATION
   
   

   *1	Purge VSV
   *2	Hose (to Canister)

   RESULT
   
   

   Result	Trouble Area	Proceed to
   Suction applied	EVAP hose between purge VSV and intake manifold normal Purge VSV Purge VSV power source Wire harness or connector between purge VSV and ECM	A
   No suction	Intake manifold port EVAP hose between purge VSV and intake manifold	B

Result: 

B 

See step  35

Result: 

A 

See step  24

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1. Remove the purge VSV (Refer to REMOVAL [08/2015 - ] ).
2. Apply the battery voltage to the terminals of the purge VSV.
3. Using an air gun, confirm that air flows from port A to port B.
   TEXT IN ILLUSTRATION
   
   

   *1	Purge VSV
   *a	Port A
   *b	Port B

   RESULT
   
   

   Result	Trouble Area	Proceed to
   Air flows	Purge VSV normal Purge VSV power source Wire harness or connector between purge VSV and ECM	A
   No air flow	Purge VSV	B

Result: 

B 

See step  40

Result: 

A 

See step  25

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the purge VSV connector.
2. Turn the engine switch on (IG).
3. Measure the voltage according to the value(s) in the table below.
   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Purge VSV)

   RESULT
   
   

   Tester Connection	Switch Condition	Specified Condition	Trouble Area	Proceed to
   C8-1 - Body ground	Engine switch on (IG)	11 to 14 V	Purge VSV power source normal Wire harness or connector between purge VSV and ECM	A
   	Engine switch on (IG)	Other than result above	Wire harness or connectors between purge VSV and battery	B

Result: 

B 

See step  41

Result: 

A 

See step  26

1. Disconnect the ECM connector.
2. Disconnect the purge VSV connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C30-18 (PRG) - C8-2	Always	Below 1 Ω
   C30-18 (PRG) - Body ground	Always	10 kΩ or higher
   C8-1 - Body ground	Always	10 kΩ or higher

Result: 

OK 

See step  51

Result: 

NG 

See step  41

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Turn the engine switch on (IG).
4. Measure the voltage according to the value(s) in the table below.
   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Canister Pump Module)

   RESULT
   
   

   Tester Connection	Switch Condition	Specified Condition	Trouble Area	Proceed to
   R27-5 (VLVB) - Body ground	Engine switch on (IG)	11 to 14 V	Wire harness or connector between vent valve and ECM Vent valve Canister (charcoal filter inside canister) clogged Trap canister (filter inside canister clogged) ECM	A
   	Engine switch on (IG)	Below 3 V	Power source wire harness of vent valve	B

Result: 

B 

See step  41

Result: 

A 

See step  28

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Apply the battery voltage to terminals 5 (VLVB) and 1 (VGND) of the canister pump module.
4. Touch the canister pump module to confirm the vent valve operation.
   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Canister)

   RESULT
   
   

   Result	Trouble Area	Proceed to
   Operating	Wire harness or connector between vent valve and ECM Canister (charcoal filter inside canister) clogged Trap canister (charcoal filter inside canister) ECM	A
   Not operating	Vent valve	B

Result: 

B 

See step  49

Result: 

A 

See step  29

1. Disconnect the ECM connector.
2. Disconnect the canister pump module connector.
3. Measure the resistance according to the value(s) in the table below.
   RESULT
   
   

   Tester Connection	Condition	Specified Condition	Trouble Area	Proceed to
   G45-19 (VPMP) - R27-1 (VGND)	Always	Below 1 Ω	Canister (charcoal filter inside canister) clogged ECM Trap canister (filter inside canister clogged)	A
   	Always	10 kΩ or higher	Wire harness or connector between ECM and canister pump module	B

Result: 

B 

See step  41

Result: 

A 

See step  30

1. Check for filter blockage in the canister.

   Refer to INSPECTION [08/2022 - ]

   OK

   No blockages in the canister.

Result: 

NG 

See step  39

Result: 

OK 

See step  31

1. Check for filter blockage in the trap canister.

   Refer to INSPECTION [08/2022 - ]

   OK

   No blockages in the trap canister.

Result: 

OK 

See step  51

Result: 

NG 

See step  54

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Turn the engine switch on (IG).
4. Measure the voltage according to the value(s) in the table below.
   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Canister Pump Module)

   RESULT
   
   

   Tester Connection	Switch Condition	Specified Condition	Trouble Area	Proceed to
   R27-3 (MTRB) - Body ground	Engine switch on (IG)	9 to 14 V	Wire harness or connector between leak detection pump and body ground Leak detection pump	A
   		Below 3 V	Wire harness or connector between leak detection pump and ECM ECM	B

Result: 

B 

See step  34

Result: 

A 

See step  33

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Measure the resistance according to the value(s) in the table below.
   RESULT
   
   

   Tester Connection	Condition	Specified Condition	Trouble Area	Proceed to
   R27-4 (MGND) - Body ground	Always	Below 1 Ω	Leak detection pump	A
   	Always	10 kΩ or higher	Wire harness or connector between canister pump module and body ground	B

Result: 

A 

See step  39

Result: 

B 

See step  41

1. Turn the engine switch off.
2. Disconnect the canister pump module connector.
3. Disconnect the ECM connector.
4. Measure the resistance according to the value(s) in the table below.
   RESULT
   
   

   Tester Connection	Condition	Specified Condition	Trouble Area	Proceed to
   G45-7 (MPMP) - R27-3 (MTRB)	Always	Below 1 Ω	ECM	A
   	Always	10 kΩ or higher	Wire harness between ECM and canister pump module	B

Result: 

A 

See step  51

Result: 

B 

See step  41

1. Stop the engine.
2. Disconnect the purge line from the intake manifold.
3. Start the engine.
4. Use your finger to confirm that the port of the intake manifold has suction.
   RESULT
   
   

   Result	Trouble Area	Proceed to
   Suction applied	Purge line between intake manifold and purge VSV	A
   No suction	Intake manifold	B

5. Reconnect the purge line.

Result: 

A 

See step  42

Result: 

B 

See step  43

HINT: 

• When reinstalling the fuel tank cap, tighten it until a few click sounds are heard.
• When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications, and tighten it until a few click sounds are heard.

Result: 

NEXT 

See step  52

HINT: 

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

Result: 

NEXT 

See step  52

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the vent hose.
2. Connect an EVAP tester to the canister pump module with an 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.

Result: 

NEXT 

See step  52

1. Replace the canister (Refer to REMOVAL [08/2022 - ] ).
   NOTE:

   • When replacing the canister, check the canister pump module interior, canister interior, trap canister 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. If liquids are present in the canister interior or trap canister interior, replace the canister, trap canister and canister pump module together.
   • Check for filter blockage in the canister and trap canister. If the charcoal filter inside the canister or trap canister is clogged, replace the canister, trap canister and canister pump module together.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *1	Fuel tank vent hose	*2	Vent Hose
   *3	Air Inlet Port	*4	Fuel Tank
   *5	Canister	*6	Trap Canister
   *a	Inspection Area (check for disconnection and/or cracks)	-	-

Result: 

NEXT 

See step  52

1. Replace the purge VSV (Refer to REMOVAL [08/2015 - ] ).

Result: 

NEXT 

See step  52

Result: 

NEXT 

See step  52

Result: 

NEXT 

See step  52

1. Check that the EVAP purge port of the intake manifold is not clogged. If necessary, replace the upper intake manifold sub-assembly (Refer to REMOVAL [08/2015 - ] ).

Result: 

NEXT 

See step  52

1. Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in.

Result: 

NEXT 

See step  52

Result: 

NEXT 

See step  52

1. Check for blockages in the fuel tank vent hose between the fuel tank assembly and canister.

   OK

   No blockages in the fuel tank vent hose between the fuel tank assembly and canister

Result: 

NG 

REPAIR OR REPLACE TANK VENT HOSE SUB-ASSEMBLY 

Result: 

OK 

See step  47

1. Check for filter blockage in the canister.

   Refer to INSPECTION [08/2022 - ]

   OK

   No blockages in the canister.

Result: 

OK 

See step  55

Result: 

NG 

See step  39

1. Replace the fuel tank assembly.

   Refer to REMOVAL [08/2016 - ]

Result: 

NEXT 

See step  50

1. Replace the trap canister (Refer to REMOVAL [08/2022 - ] ).
   NOTE:

   • When replacing the trap canister, check the canister interior, 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.
   • Check for filter blockage in the canister and trap canister. If the charcoal filter inside the canister or trap canister is clogged, replace the canister, trap canister and canister pump module together.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *1	Fuel tank vent hose	*2	Vent Hose
   *3	Air Inlet Port	*4	Fuel Tank
   *5	Canister	*6	Trap Canister
   *a	Inspection Area (check for disconnection and/or cracks)	-	-

Result: 

NEXT 

See step  52

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - ] ).
5. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
6. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
   RESULT
   
   

   Result	Proceed to
   EVAP system DTCs are output	A
   No output (No pending DTCs output)	B

Result: 

B 

END 

Result: 

A 

See step  51

1. Replace the ECM (Refer to REMOVAL [08/2015 - ] ).

Result: 

NEXT 

See step  52

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - ] ).
5. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
6. 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 DTCs are found, the repair has been successfully completed.

Result: 

NEXT 

END 

1. Check for filter blockage in the trap canister.

   Refer to INSPECTION [08/2022 - ]

   OK

   No blockages in the trap canister.

Result: 

OK 

See step  51

Result: 

NG 

See step  54

1. Replace the trap canister.

   Refer to REMOVAL [08/2022 - ]

   NOTE:

   • When replacing the trap canister, check the canister interior, 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.
   • Check for filter blockage in the canister and trap canister. If the charcoal filter inside the canister or trap canister is clogged, replace the canister, trap canister and canister pump module together.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *1	Fuel tank vent hose	*2	Vent Hose
   *3	Air Inlet Port	*4	Fuel Tank
   *5	Canister	*6	Trap Canister
   *a	Inspection Area (check for disconnection and/or cracks)	-	-

Result: 

NEXT 

See step  52

1. Check for filter blockage in the trap canister.

   Refer to INSPECTION [08/2022 - ]

   OK

   No blockages in the trap canister.

Result: 

OK 

See step  48

Result: 

NG 

See step  49