EVAP System [09/2023 - ]: Procedure

1. Turn the ignition switch off and wait 10 seconds.
2. Turn the ignition switch to ON.
3. Turn the ignition switch off and wait 10 seconds.
4. Confirm the DTCs and Freeze Frame Data.

   Powertrain > Engine > Trouble Codes 

   EVAP RELATED DTCS
   
   

   DTC No.	Monitoring Item
   P043E-00	Reference orifice low flow
   P043F-00	Reference orifice high flow
   P0441-9C	Purge VSV (Vacuum Switching Valve) stuck closed Check valve (purge VSV) stuck closed Insufficient purge flow
   P0446-72	Vent valve (built into canister pump module) stuck open
   P0446-73	Vent valve (built into canister pump module) stuck closed
   P1420-00	Small leak from canister
   P1421-00	Gross leak from canister
   P1422-00	Small leak from fuel tank
   P1423-00	Gross leak from fuel tank
   P148D-7E	Check valve (purge VSV) stuck open
   P2400-7E	Leak detection pump stuck on
   P2400-7F	Leak detection pump stuck off
   P2450-7E	Fuel vapor-containment valve stuck open
   P2451-7F	Fuel vapor-containment valve stuck closed

   DTC AND MALFUNCTION CROSS-REFERENCE
   
   

   Malfunction	Output DTC
   Reference orifice low flow	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Reference orifice high flow	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Leak detection pump stuck off	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Leak detection pump stuck on	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Vent valve (built into canister pump module) stuck closed	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Vent valve (built into canister pump module) stuck open (vent)	P0446-73
   Insufficient purge flow	P0441-9C
   Purge VSV stuck closed	P0441-9C
   Check valve (purge VSV) stuck closed	P0441-9C
   Check valve (purge VSV) stuck open	P148D-7E
   Small leak from canister	P1420-00
   Gross leak from canister	P0441-7E, P1421-00
   Small leak from fuel tank	P1422-00
   Gross leak from fuel tank	P1423-00
   Fuel vapor-containment valve stuck open	P1423-00, P2450-7E
   Fuel vapor-containment valve stuck closed	P2451-7F

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Remove the fuel tank cap assembly and reinstall the fuel tank cap assembly.
2. Perform the Evaporative System Check (Automatic Mode).

   Powertrain > Engine > Utility 

   Tester Display
   Evaporative System Check

3. After the Evaporative System Check is completed, check for pending DTCs.

   Result

   Result	Conclusion	Proceed to
   A pending DTC is stored	A malfunction occurs and troubleshooting can be performed	A
   A pending DTC is not stored	No malfunctions occur and it is difficult to perform troubleshooting	B
   A pending DTC is not stored and any of the current DTCs (P1422-00, P1423-00, or P2450-7E) is stored	DTCs are stored because the fuel tank cap assembly is not tightened firmly	C

Result: 

B 

See step  18

Result: 

C 

END 

Result: 

A 

See step  4

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

   Result

   Malfunction	Output DTC	Proceed to
   Reference orifice low flow	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F	B
   Reference orifice high flow	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Leak detection pump stuck off	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Leak detection pump stuck on	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Vent valve (built into canister pump module) stuck closed	P043E-00, P043F-00, P0446-72, P2400-7E, P2400-7F
   Vent valve (built into canister pump module) stuck open (vent)	P0446-73	C
   Insufficient purge flow	P0441-9C	A
   Purge VSV stuck closed	P0441-9C
   Check valve (purge VSV) stuck closed	P0441-9C
   Check valve (purge VSV) stuck open	P148D-7E
   Small leak from canister	P1420-00	D
   Gross leak from canister	P0441-7E, P1421-00	A
   Small leak from fuel tank	P1422-00
   Gross leak from fuel tank	P1423-00
   Fuel vapor-containment valve stuck open	P1423-00, P2450-7E
   Fuel vapor-containment valve stuck closed	P2451-7F

Result: 

B 

See step  38

Result: 

C 

See step  40

Result: 

D 

See step  7

Result: 

A 

See step  5

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

   Result

   Malfunction	Output DTC	Proceed to
   Insufficient purge flow	P0441-9C	A
   Purge VSV stuck open	P0441-7E, P1421-00
   Purge VSV stuck closed	P0441-7F
   Gross leak from canister	P0441-7E, P1421-00
   Small leak from fuel tank	P1422-00	B
   Gross leak from fuel tank	P1423-00
   Fuel vapor-containment valve stuck open	P1423-00, P2450-7E	C
   Fuel vapor-containment valve stuck closed	P2451-7F

Result: 

B 

See step  30

Result: 

C 

See step  34

Result: 

A 

See step  6

1. Disconnect the No. 3 fuel vapor feed hose (connected to the intake manifold) from the purge VSV.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Purge VSV
   *2	No. 3 Fuel Vapor Feed Hose (to intake manifold)

2. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

3. Start the engine.
4. Use your finger to confirm that the hose has suction.

   Result

   Test Result	Suspected Trouble Area	Proceed to
   Suction applied	EVAP hose between purge VSV and intake manifold normal	A
   No suction	Intake manifold port EVAP hose between purge VSV and intake manifold	B

Result: 

B 

See step  15

Result: 

A 

See step  7

1. Disconnect the No. 2 fuel vapor feed hose (connected to the canister) from the purge VSV.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	No. 2 Fuel Vapor Feed Hose (to Canister)
   *2	Purge VSV

2. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

3. Start the engine.
4. Using the GTS, turn off the purge VSV (Activate the EVAP Purge VSV: OFF).

   Powertrain > Engine > Active Test 

   Tester Display
   Activate the EVAP Purge VSV

5. Use your finger to confirm that the purge VSV has no suction.
6. Using the GTS, turn on the purge VSV (Activate the EVAP Purge VSV: ON).
7. Use your finger to confirm that the purge VSV has suction.

   Result

   Result	Suspected Trouble Area	Proceed to
   Suction applied when purge VSV turned off	Purge VSV stuck open ECM	A
   No suction when purge VSV turned on	Purge VSV stuck closed Check valve stuck closed
   No suction when purge VSV turned off, and suction applied when turned on	Purge VSV normal	B

Result: 

B 

See step  13

Result: 

A 

See step  8

1. Remove the purge VSV.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1

   Purge VSV

2. Apply compressed air to the purge VSV, and confirm that no air flows from E to F and G as shown in the illustration.
3. Apply auxiliary battery voltage to the terminal of the purge VSV.
4. While applying compressed air, confirm that air flows from E to F and G as shown in the illustration.

   Result

   Result	Proceed to
   Air flows from E to F and G only when auxiliary battery voltage applied to purge VSV. Conclusion: purge VSV is normal	A
   No air flows from E to F and G when auxiliary battery voltage is applied to purge VSV. Conclusion: purge VSV is malfunctioning.	B
   Air flows from E to F and G when auxiliary battery voltage is not applied to purge VSV. Conclusion: purge VSV is malfunctioning

Result: 

B 

See step  12

Result: 

A 

See step  9

1. Disconnect the purge VSV connector.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Result

   Tester Connection	Condition	Specified Condition	Suspected Trouble Area	Proceed to
   C15-1 (+B) - Body ground	Ignition switch ON	11 to 14 V	Purge VSV power source normal Wire harness or connector between purge VSV and ECM	A
   		Other than result above	Wire harness or connectors between purge VSV and auxiliary battery	B

Result: 

B 

See step  48

Result: 

A 

See step  10

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C15-2 (EVP1) - C27-16 (PRG)	Always	Below 1 Ω
   C15-2 (EVP1) or C27-16 (PRG) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  48

Result: 

OK 

See step  11

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Connect the EVAP pressure tester tool to the canister pump module with the adapter.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Canister Pump Module	*2	Adapter
   *3	EVAP Pressure Tester Tool	-	-

2. Confirm good connection at the canister pump module.
3. Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [0.46 and 0.54 psi(gauge)].
   NOTE:

   Higher than 4.7 kPa(gauge) [0.7 psi(gauge)] of pressure will damage the EVAP system. Pay attention to the pressure.

4. Apply soapy water to the piping and connections of the EVAP system.
5. Look for areas where bubbles appear.

   HINT: 

   If the system has leaks, a whistling sound will be heard.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  14

1. Repair or replace the leak point.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Disconnect the fuel vapor feed hose assembly from the intake manifold.
2. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

3. Start the engine.
4. Use your finger to confirm that the port of the intake manifold has suction.

   Result

   Result	Suspected Trouble Area	Proceed to
   Suction applied	EVAP hose between intake manifold and purge VSV	A
   No suction	Intake manifold	B

Result: 

B 

See step  17

Result: 

A 

See step  16

1. Repair or replace the fuel vapor feed hose assembly.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

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

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  19

HINT: 

In the manual operation check, the EVAP system can be checked in several steps. Valve operation and pressure in each step can also be checked.

1. Remove the fuel tank cap assembly and reinstall the fuel tank cap assembly.
2. Perform the Evaporative System Check using the GTS.

   Powertrain > Engine > Utility 

   Tester Display
   Evaporative System Check

   NOTE:

   • The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the GTS. It takes a maximum of approximately 40 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 start the engine during this operation.
   • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor will from and any check result will be inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).
   GTS DISPLAY
   
   

   Display	Detail
   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 (Open)
   Vacuum Pump	Leak detection pump condition is displayed: ON/OFF
   Fuel VCV	Fuel vapor-containment valve condition is displayed: ON (Open)/OFF (Closed)
   Tank Pressure	Fuel tank pressure (Absolute pressure)
   Vapor Pressure (Gauge)	EVAP pressure (Gauge pressure measured at canister pump module)
   Vapor Pressure (Absolute)	EVAP pressure (Absolute pressure measured at canister pump module)
   Time (Step)	Elapsed time for each step
   Time (VENT)	Accumulated vent valve open time
   Time (PUMP)	Accumulated leak detection pump operating time

   MANUAL OPERATION STEP
   
   

   Step	Operations
   1. Atmosphere Pressure Check	Atmospheric pressure measurement
   2. Reference Pressure (0.02 inch) Check 1	First reference pressure measurement
   3. Canister Leak Check	EVAP system pressure measurement
   4. Check Valve Check	Check valve monitor
   5. Reference Pressure (0.02 inch) Check 2	Second reference pressure measurement
   6. Resetting	Resetting
   7. Tank Leak Check	Fuel tank pressure measurement
   8. Reference Pressure (0.02 inch) Check 3	Third reference pressure measurement
   9. Atmosphere Pressure Check	Atmospheric pressure measurement

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  20

1. Select step 1 and wait 10 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  21

1. Perform step 2.
2. Check the evaporative pressure 2 seconds after the leak detection pump is activated* (A).

   *: The leak detection pump begins to operate at the start of step 2.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Check the evaporative (EVAP) pressure again when it has stabilized (B). This pressure is the first reference pressure.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Result	Suspected Trouble Area	Proceed to
   EVAP pressure in inspection item (B) is between -4.85 and -1.068 kPa(gauge) [-0.7 and -0.155 psi(gauge)]	Not yet determined	A
   EVAP pressure in inspection item (B) is -1.068 kPa(gauge) [-0.155 psi(gauge)] or higher	Reference orifice high-flow Leak detection pump stuck off	B
   EVAP pressure in inspection item (B) is less than -4.85 kPa(gauge) [-0.7 psi(gauge)]	Reference orifice clogged	C

Result: 

B 

See step  38

Result: 

C 

See step  44

Result: 

A 

See step  22

1. Perform step 3.
2. Check the evaporative (EVAP) pressure change in step 3 (A).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Result	Suspected Trouble Area	Proceed to
   EVAP pressure change in inspection item (A) is 0.3 kPa [0.04 psi] or higher	Not yet determined	A
   EVAP pressure change in inspection item (A) is less than 0.3 kPa [0.04 psi]	Vent valve (switching valve) stuck off	B

3. Check the fuel tank pressure change in step 3 (B).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Result	Suspected Trouble Area	Proceed to
   Fuel tank pressure change in inspection item (B) is less than 0.5 kPa [0.07 psi]	Not yet determined	A
   Fuel tank pressure change in inspection item (B) is higher than 0.5 kPa [0.07 psi]	Fuel vapor-containment valve stuck on (open)	C

4. Check the EVAP pressure again when it has stabilized. This pressure is the canister leak pressure.
5. Compare the first reference pressure with the canister leak pressure.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Result	Suspected Trouble Area	Proceed to
   Lower than first reference pressure	Not yet determined	A
   First reference pressure or higher	Purge VSV stuck open Leakage from line between purge VSV and canister	D

Result: 

B 

See step  40

Result: 

C 

See step  34

Result: 

D 

See step  13

Result: 

A 

See step  23

1. Perform step 4.
2. Check the evaporative (EVAP) pressure change in step 4 (A).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Result	Suspected Trouble Area	Proceed to
   Variation in EVAP pressure is less than 0.3 kPa [0.04 psi] for 10 seconds, after proceeding from step 3 to 4	Not yet determined	A
   EVAP pressure increases by 0.3 kPa [0.04 psi] or higher within 10 seconds of proceeding from step 3 to 4	Check valve (purge VSV) stuck open	B

Result: 

B 

See step  29

Result: 

A 

See step  24

1. Perform step 5 and wait 60 seconds.
2. Check the evaporative (EVAP) pressure. This pressure is the second reference pressure.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Result	Suspected Trouble Area	Proceed to
   EVAP pressure increases by 0.3 kPa [0.044 psi] or higher within 60 seconds of proceeding from step 4 to 5	Not yet determined	A
   Variation in EVAP pressure is below 0.3 kPa [0.044 psi] for 60 seconds, after proceeding from step 4 to 5	Vent valve stuck closed	B

Result: 

B 

See step  44

Result: 

A 

See step  25

1. Perform step 6 and wait 5 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  26

1. Perform step 7.
2. Check that the tank pressure and EVAP pressure change.
3. Check the tank pressure again when it has stabilized. This pressure is the fuel tank leak pressure.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   Result	Suspected Trouble Area	Proceed to
   Fuel tank pressure change is higher than 0.5 kPa [0.07 psi] and EVAP pressure is higher than 0.9 kPa(gauge) [0.1 psi(gauge)]	Not yet determined	A
   Fuel tank pressure change is less than 0.5 kPa [0.07 psi] and EVAP pressure is less than 0.9 kPa(gauge) [0.1 psi(gauge)]	Fuel vapor-containment valve stuck OFF (closed)	B

Result: 

B 

See step  34

Result: 

A 

See step  27

1. Perform step 8 and wait 60 seconds.
2. Check the evaporative (EVAP) pressure. This pressure is the third reference pressure.
3. Compare the fuel tank pressure checked in step 7 with the third reference pressure.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   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

Result: 

B 

See step  30

Result: 

A 

See step  28

1. Refer to Confirmation Driving Pattern.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Check that the fuel tank cap assembly is correctly installed and confirm that the fuel tank cap assembly meets OEM specifications.
2. Tighten the fuel tank cap assembly firmly (only one click sound could be heard).

   HINT: 

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

   1. Remove the fuel tank cap assembly 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(gauge) [0.46 to 0.54 psi(gauge)] using an EVAP tester pump.
   3. Seal the adapter and wait for 2 minutes.
   4. Check the pressure. If the pressure is 2 kPa(gauge) [0.3 psi(gauge)] or higher, the fuel tank cap assembly is normal.

   Result

   Result	Suspected Trouble Area	Proceed to
   Fuel tank cap assembly correctly installed	-	A
   Fuel tank cap assembly loose	Fuel tank cap assembly improperly installed Defective fuel tank cap assembly Fuel tank cap assembly does not meet OEM specifications	B

Result: 

B 

See step  33

Result: 

A 

See step  31

1. Connect the EVAP pressure tester tool to the canister pump module with the adapter.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Canister Pump Module	*2	Adapter
   *3	EVAP Pressure Tester Tool	-	-

2. Turn the fuel vapor-containment valve open (on) using the GTS.

   Powertrain > Engine > Active Test 

   Tester Display
   Activate the Fuel Vapor-Containment Valve

3. Confirm good connection at the canister pump module.
4. Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [0.46 to 0.54 psi(gauge)].
   NOTE:

   Higher than 4.7 kPa(gauge) [0.7 psi(gauge)] of pressure will damage the EVAP system. Pay attention to the pressure.

5. Apply soapy water to the piping and connections of the EVAP system.
6. Look for areas where bubbles appear.

   HINT: 

   If the system has leaks, a whistling sound will be heard.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  32

1. Repair or replace the leak point.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Replace the fuel tank cap assembly.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

Refer to INSPECTION [09/2023 - ]

Result

Result: 

NG 

See step  37

Result: 

OK 

See step  35

1. Disconnect the fuel vapor-containment valve connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J31-1 (+UL) - C26-25 (CCA+)	Always	Below 1 Ω
   J31-2 (+UM) - C26-26 (CCA-)	Always	Below 1 Ω
   J31-3 (+UN) - C26-7 (CCB-)	Always	Below 1 Ω
   J31-4 (+UP) - C26-6 (CCB+)	Always	Below 1 Ω
   J31-1 (+UL) or C26-25 (CCA+) - Body ground and other terminals	Always	10 kΩ or higher
   J31-2 (+UM) or C26-26 (CCA-) - Body ground and other terminals	Always	10 kΩ or higher
   J31-3 (+UN) or C26-7 (CCB-) - Body ground and other terminals	Always	10 kΩ or higher
   J31-4 (+UP) or C26-6 (CCB+) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  48

Result: 

OK 

See step  36

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Turn the vacuum pump (leak detection pump) on with the GTS.

   Powertrain > Engine > Active Test 

   Tester Display
   Activate the Vacuum Pump

2. Touch the canister pump module and check if the leak detection pump is moving.

   OK

   Leak detection pump operates.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  43

Result: 

OK 

See step  39

1. Touch the canister pump module, use the GTS to turn the vent valve on and off, and check if the vent valve is moving.

   Powertrain > Engine > Active Test 

   Tester Display
   Activate the VSV for Vent Valve

   OK

   Vent valve vibration can be felt.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  44

Result: 

NG 

See step  40

1. Disconnect the canister pump module connector.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   J32-5 (VLVB) - Body ground	Ignition switch ON	10 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  48

Result: 

OK 

See step  41

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the canister pump module connector.
2. Apply auxiliary battery voltage to VLVB and VGND terminals of the canister pump module.
3. Touch the canister pump module to confirm the vent valve operation.

   Result

   Result	Suspected Trouble Area	Proceed to
   Operating	ECM	A
   Not operating	Vent valve	B

Result: 

B 

See step  44

Result: 

A 

See step  42

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Disconnect the canister pump module connector.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   J32-3 (MTRB) - J32-4 (MGND)	Ignition switch ON	10 to 14 V
   	Ignition switch off	Below 3 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  45

Result: 

OK 

See step  44

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J32-4 (MGND) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  48

Result: 

OK 

See step  46

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J32-3 (MTRB) - B77-7 (MPMP)	Always	Below 1 Ω
   J32-3 (MTRB) or B77-7 (MPMP) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  48

Result: 

OK 

See step  47

Refer to REMOVAL [09/2023 - ]

Result

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE) 

1. Repair or replace harness or connector.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)