Toyota Tundra (2015 year). Manual — part 1182
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.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation).
12.
Turn the ignition switch off and wait for at least 30 seconds.
13.
Turn the ignition switch to ON
14.
Turn the Techstream on [D].
15.
Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic
Mode.
16.
After the "Evaporative System Check" is completed, check All Readiness by entering the following menus:
Powertrain / Engine and ECT / Utility / All Readiness.
17.
Input the DTC: P0441.
18.
Check the DTC judgment result [E].
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.
19.
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.
20.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze
frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle
was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
PROCEDURE
1.
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P0441)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0441; Evapor...
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(e) Read the DTCs.
RESULT
PROCEED TO
DTC P0441 is output
A
DTC P0441 and other DTCs are output
B
HINT:
If any DTCs other than P0441 are output, perform troubleshooting for those DTCs first.
B
GO TO DTC CHART
A
GO TO EVAP SYSTEM
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0441; Evapor...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM0000012MC0BTX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453; Evaporative Emission Control System Pressure
Sensor Range / Performance; 2015 MY Tundra [08/2014 - ]
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
DTC SUMMARY
DTC
NO.
MONITORING
ITEM
MALFUNCTION
DETECTION
CONDITION
TROUBLE AREA
DETECTION TIMING
DETECTION
LOGIC
P0451
Canister
pressure sensor
noise
Sensor output
voltage fluctuates
frequently within
certain time period.
Canister pump module
Connector/wire harness
(Canister pump module
- ECM)
EVAP system hose (pipe
from air inlet port to
canister pump module,
canister filter, fuel tank
vent hose)
ECM
EVAP
monitoring
(ignition
switch off)
Engine
running
2 trip
P0451
Canister
pressure sensor
becomes
fixed/flat
Sensor output
voltage does not
vary in a certain
time period.
Canister pump module
Connector/wire harness
(Canister pump module
- ECM)
EVAP system hose (pipe
from air inlet port to
canister pump module,
canister filter, fuel tank
vent hose)
ECM
EVAP
monitoring
(ignition
switch off)
2 trip
P0452
Canister
pressure sensor
low input
EVAP pressure
Below 42.1 kPa for
0.5 seconds.
Canister pump module
Connector/wire harness
(Canister pump module
- ECM)
EVAP system hose (pipe
from air inlet port to
canister pump module,
canister filter, fuel tank
vent hose)
ECM
Ignition
switch ON
EVAP
monitoring
(ignition
switch off)
1 trip
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
HINT:
The canister pressure sensor is built into the canister pump module.
DESCRIPTION
The description can be found in the EVAP (Evaporative Emission) system
.
MONITOR DESCRIPTION
DTC P0451: Canister pressure sensor noise or fixed/flat
If the canister pressure sensor voltage output fluctuates rapidly for 10 seconds, the ECM stops the EVAP
system monitor. The ECM interprets this as noise from the canister pressure sensor, and stops the EVAP
system monitor. The ECM then illuminates the MIL and stores the DTC (2 trip detection logic).
Alternatively, if the sensor voltage output does not change for 10 seconds, the ECM interprets this as the
sensor being stuck, and stops the monitor. The ECM then illuminates the MIL and stores the DTC (both
malfunctions are detected by 2 trip detection logic).
1.
DTC P0452: Canister pressure sensor voltage low
If the canister pressure sensor output [pressure] is below 42.1 kPa-a (315.9 mmHg-a), the ECM interprets
this as an open or short circuit malfunction in the canister pressure sensor or its circuit, and stops the EVAP
system monitor. The ECM then illuminates the MIL and stores the DTC (1 trip detection logic).
2.
DTC P0453: Canister pressure sensor voltage high
If the canister pressure sensor output [pressure] is higher than 123.8 kPa-a (928.4 mmHg-a), the ECM
interprets this as an open or short circuit malfunction in the canister pressure sensor or its circuit, and
stops the EVAP system monitor. The ECM then illuminates the MIL and stores the DTC (1 trip detection
logic).
3.
MONITOR STRATEGY
Required Sensors/Components
Canister pump module
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
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