Toyota Tundra (2015 year). Manual — part 1296
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the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.
2.
PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)
NOTICE:
.
(b) Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check /
Automatic Mode.
(c) After Evaporative System Check is completed, check for pending DTCs by entering the following
menus: Powertrain / Engine and ECT / Trouble Codes.
HINT:
If no pending DTCs are displayed, perform Monitor Confirmation (see "Diagnostic Help" menu). After this
confirmation, check for pending DTCs. If no DTCs are displayed, the EVAP system is normal.
3.
PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
NEXT
NOTICE:
.
(b) Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual
Mode.
4.
PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/6)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
(a) Check the EVAP pressure in step 1/6.
Result
DTC*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
(P0452 or
P0453)*2
EVAP pressure is below 42.1 kPa-a (315.85
mmHg-a) or 123.8 kPa-a (928.28 mmHg-a)
or more
EVAP pressure deviates 10 kPa (75 mmHg)
from actual atmosphere pressure *3
Canister pressure sensor or
its circuit has malfunction
C
*1: These DTCs are already stored 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.
HINT:
*3: Canister pressure sensor standard output range is 70 to 110 kPa-a (525 to 825 mmHg-a). This varies by
weather.
B
GO TO STEP 38
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
A
C
GO TO STEP 12
5.
PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/6 TO 2/6)
(a) Check the EVAP pressure in steps 1/6 and 2/6.
Result
DTC*
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
*: These DTCs are already stored 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.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
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