Toyota Tundra (2015 year). Manual — part 1565

HINT:

*1: for 100 L (26.4 US gal) Fuel Tank
*2: for 144 L (38 US gal) Fuel Tank

MONITOR STRATEGY

Required Sensors/Components

Canister pump module

Duration

Within 7 minutes

MIL Operation

2 driving cycles

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not stored

None

Atmospheric pressure

70 to 111 kPa-a (525 to 833 mmHg-a)

Battery voltage

10.5 V or more

Vehicle speed

Below 4 km/h (2.5 mph)

Ignition switch

Off

Time after key off

5 or 7 or 9.5 hours

Canister pressure sensor malfunction

Not detected

Purge VSV

Not operated by scan tool

Vent valve

Not operated by scan tool

Leak detection pump

Not operated by scan tool

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P043E,P043...

1. Duration that vehicle driven

5 minutes or more

2. EVAP purge operation

Performed

ECT

4.4 to 35°C (40 to 95°F)

IAT

4.4 to 35°C (40 to 95°F)

TYPICAL MALFUNCTION THRESHOLDS

"Saturated" indicates that the EVAP pressure change is less than 0.286 kPa-g (2.14 mmHg-g) in 60 seconds.

EVAP pressure just after reference pressure measurement

started

More than -1 kPa-g (-7.5 mmHg-g)

Reference pressure

Less than -4.85 kPa-g (-36.37 mmHg-g)

Reference pressure

-1.057 kPa-g (-7.93 mmHg-g) or more

Reference pressure

Not saturated within 360

seconds*1

Not saturated within 300

seconds*2

Reference pressure difference between first and second

0.9 kPa-g (6.75 mmHg-g) or more

*1: for 100 L (26.4 US gal) Fuel Tank

*2: for 144 L (38 US gal) Fuel Tank

MONITOR RESULT

Refer to CHECKING MONITOR STATUS

.

CONFIRMATION DRIVING PATTERN

NOTICE:

1.

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

2.

Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).

3.

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

4.

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

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 All Readiness by entering the following

menus: Powertrain / Engine and ECT / Utility / All readiness.

7.

Input the DTC: P043E, P043F, P2401, P2402 or P2419.

8.

Check the DTC judgment result.

TESTER

DISPLAY

DESCRIPTION

9.

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P043E,P043...

TESTER

DISPLAY

DESCRIPTION

NORMAL

DTC judgment completed

System normal

ABNORMAL

DTC judgment completed

System abnormal

INCOMPLETE

DTC judgment not completed

Perform driving pattern after confirming DTC enabling conditions

N/A

Unable to perform DTC judgment

HINT:

If the judgment result shows ABNORMAL, the system has a malfunction.

If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and

check for permanent DTCs

.

HINT:

If a permanent DTC is output, the system is malfunctioning.
If no permanent DTC is output, the system is normal.

10.

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P043E,P043...

Last Modified: 9-16-2014

6.6 C

Doc ID: RM000000SWF0D9X

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0441; Evaporative Emission Control System Incorrect Purge

Flow; 2015 MY Tundra [08/2014 - ]

DTC

P0441

Evaporative Emission Control System Incorrect Purge Flow

DTC SUMMARY

DTC

NO.

MONITORING

ITEM

MALFUNCTION DETECTION

CONDITION

TROUBLE AREA

DETECTION

TIMING

DETECTION

LOGIC

P0441

Purge VSV

(Vacuum

Switching Valve)

stuck open

Leak detection pump creates

negative pressure (vacuum) in EVAP

system and EVAP system pressure

measured. Reference pressure

If stabilized pressure higher than

[second reference pressure x 0.2],

ECM determines that purge VSV

stuck open.

Purge VSV

Connector/wire

harness (Purge

VSV - ECM)

ECM

Canister pump

module

Leakage from

EVAP system

While

ignition

switch off

2 trip

Purge VSV stuck

closed

After EVAP leak check performed,

purge VSV turned ON (open), and

atmospheric air introduced into EVAP

system. Reference pressure

measured at start and at end of

check.

If pressure does not return to near

atmospheric pressure, ECM

determines that purge VSV stuck

closed.

Purge VSV

Connector/wire

harness (Purge

VSV - ECM)

ECM

Canister pump

module

Leakage from

EVAP system

While

ignition

switch off

2 trip

Purge flow

While engine running, following

conditions successively met:

Negative pressure not

created in EVAP system

when purge VSV turned

ON (open)

EVAP system pressure

change less than 0.4

kPa-g (3 mmHg-g)*1 or

0.15 kPa-g (1.125

mmHg-g)*2 when vent

valve turned ON (closed)

Atmospheric pressure

change before and after

purge flow monitor less

than 0.1 kPa-g (0.75

mmHg-g)

Purge VSV

Connector/wire

harness (Purge

VSV - ECM)

Leakage from

EVAP line (Purge

VSV - Intake

manifold)

ECM

While engine

running

2 trip

*1: for 100 L (26.4 US gal) Fuel Tank

*2: for 144 L (38 US gal) Fuel Tank

DESCRIPTION

The description can be found in the EVAP (Evaporative Emission) System

.

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0441; Evap...