Toyota Tundra (2015 year). Manual — part 1675
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NOTICE:
.
(b) Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check /
Manual Mode.
4.
PERFORM EVAP SYSTEM CHECK (STEP 1/6)
(a) Check the EVAP pressure in step 1/6.
Result
DTCS*1
TEST RESULT
SUSPECTED 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*3
C*4
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
A
DTCS*1
TEST RESULT
SUSPECTED TROUBLE
AREA
PROCEED
TO
(P0452 or
P0453)*2
EVAP pressure is below 42.11009 kPa (abs)
[315.86779 mmHg (abs)] or 123.76147 kPa (abs)
[928.33489 mmHg (abs)] or more
EVAP pressure deviates +/-10 kPa [+/-75 mmHg]
from actual atmosphere pressure*5
Canister pressure sensor
or its circuit has
malfunction
D
*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 ignition switch is turned to ON.
*3: for 100 L (26.4 US gal) Fuel Tank
*4: for 144 L (38 US gal) Fuel Tank
HINT:
*5: Canister pressure sensor standard output range is 70 to 111 kPa (abs) [525 to 833 mmHg (abs)]. This
varies by weather.
B
GO TO STEP 38
C
GO TO STEP 39
D
GO TO STEP 12
5.
PERFORM EVAP SYSTEM CHECK (STEP 1/6 TO 2/6)
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
A
*1: for 100 L (26.4 US gal) Fuel Tank
*2: for 144 L (38 US gal) Fuel Tank
(a) Check the EVAP pressure in steps 1/6 and 2/6.
Result
DTCS*3
TEST RESULT
SUSPECTED 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
*3: 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.
B
GO TO STEP 33
6.
PERFORM EVAP SYSTEM CHECK (STEP 2/6)
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
*1: for 100 L (26.4 US gal) Fuel Tank
*2: for 144 L (38 US gal) Fuel Tank
HINT:
*: The leak detection pump begins to operate as step 1/6 finishes and step 2/6 starts.
(b) Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure.
Result
DTCS*3
TEST RESULT
SUSPECTED 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*4
D*5
P2419
EVAP pressure in step (a) more than -1.057 kPa-g
(-7.93 mmHg-g)
Vent valve stuck closed
E
*3: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the
"CONFIRM DTC" procedures above.
*4: for 100 L (26.4 US gal) Fuel Tank
*5: for 144 L (38 US gal) Fuel Tank
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
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