Toyota Tundra (2015 year). Manual — part 1676
A
B
GO TO STEP 11
C
GO TO STEP 38
D
GO TO STEP 39
E
GO TO STEP 13
7.
PERFORM EVAP SYSTEM CHECK (STEP 2/6 TO 3/6)
*1: for 100 L (26.4 US gal) Fuel Tank
*2: for 144 L (38 US gal) Fuel Tank
(a) Check the EVAP pressure increase in step 3/6.
Result
DTCS*
TEST RESULT
SUSPECTED TROUBLE
AREA
PROCEED
TO
-
EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more
A
P2420
No variation in EVAP pressure despite proceeding from step 2/6
to step 3/6
Vent valve stuck open
(vent)
B
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
A
DTCS*
TEST RESULT
SUSPECTED TROUBLE
AREA
PROCEED
TO
P0451 No variation in EVAP pressure during steps 1/6 through 3/6
Canister pressure sensor
output value stuck
C
*: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "CONFIRM DTC"
procedures above.
B
GO TO STEP 27
C
GO TO STEP 15
8.
PERFORM EVAP SYSTEM CHECK (STEP 3/6)
*1: for 100 L (26.4 US gal) Fuel Tank
*2: for 144 L (38 US gal) Fuel Tank
(a) Wait until the EVAP pressure change is less than 0.12 kPa-g (0.9 mmHg-g) for 60 seconds.
(b) Measure the EVAP pressure and record it.
HINT:
for 100 L (26.4 US gal) Fuel Tank:
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.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
NEXT
for 144 L (38 US gal) Fuel Tank:
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 30 minutes.
9.
PERFORM EVAP SYSTEM CHECK (STEP 4/6)
(a) Check the EVAP pressure in step 4/6.
Result
DTCS*1
TEST RESULT
SUSPECTED TROUBLE AREA
PROCEED
TO
-
EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or
Not yet determined
A
P0441*2
EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or
Problems in purge line between
purge VSV and intake manifold
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
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
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
A
borderline values.
B
GO TO STEP 22
C
GO TO STEP 17
10.
PERFORM EVAP SYSTEM CHECK (STEP 5/6)
(a) Check the EVAP pressure in step 5/6.
(b) Compare the EVAP pressure in step 3/6 and the second reference pressure (step 5/6).
Result
DTCS*
TEST RESULT
SUSPECTED TROUBLE AREA
PROCEED
TO
-
EVAP pressure (step 3/6) lower than second
reference pressure (step 5/6)
Not yet determined (no leakage
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.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System...
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