Toyota Tundra (2015 year). Manual — part 1302
A
(a) Turn the ignition switch off.
(b) Disconnect the canister pump module connector.
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
TESTER
CONNECTION
CONDITION
TEST
RESULT
SUSPECTED TROUBLE AREA
PROCEED
TO
R12-3 (MTRB) -
Body ground
Ignition switch
ON
9 to 14 V
Wire harness or connector between leak
detection pump and body ground
Leak detection pump
A
Below 3 V
Wire harness or connector between leak
detection pump and ECM
ECM
B
Text in Illustration
*a
B
GO TO STEP 33
32.
CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)
(a) Turn the ignition switch off.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
(b) Disconnect the canister pump module connector.
(c) Measure the resistance according to the value(s) in the table below.
TESTER CONNECTION CONDITION
SPECIFIED
CONDITION
SUSPECTED TROUBLE AREA
PROCEED
TO
R12-4 (MGND) - Body
ground
Always
Below 1 Ω
Leak detection pump
A
Always
10 kΩ or higher
Wire harness or connector between canister
pump module and body ground
B
A
GO TO STEP 38
B
GO TO STEP 40
33.
CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)
(a) Turn the ignition switch off.
(b) Disconnect the ECM connector.
(c) Disconnect the canister pump module connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
A24-49 (MPMP) - R12-3 (MTRB)
Always
Below 1 Ω
A24-49 (MPMP) or R12-3 (MTRB) - Body ground
Always
10 kΩ or higher
Result
RESULT
SUSPECTED TROUBLE AREA
PROCEED TO
OK
ECM
A
NG
Wire harness or connector between ECM and canister pump module
B
A
GO TO STEP 47
B
GO TO STEP 40
34.
INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)
(a) Stop the engine.
(b) Disconnect the EVAP hose from the intake manifold.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
(c) Start the engine.
TEST RESULT
SUSPECTED TROUBLE AREA
PROCEED TO
Suction applied
EVAP hose between intake manifold and purge VSV
A
No suction
Intake manifold
B
A
GO TO STEP 41
B
GO TO STEP 42
35.
CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY
HINT:
When reinstalling the fuel tank cap, tighten it until a click sound is heard.
When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications and tighten it until a
click sound is heard.
NEXT
GO TO STEP 49
36.
REPLACE FUEL TANK CAP ASSEMBLY
HINT:
When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications and tighten it until a click
sound is heard.
NEXT
GO TO STEP 49
37.
LOCATE EVAP PART WHICH IS LEAKING
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
Text in Illustration
*1
EVAP Tester
*2
Adapter
*3
Canister Outlet Hose
-
-
(a) Disconnect the canister outlet hose.
(b) Connect an EVAP tester to the canister pump module with an adapter.
(c) Pressurize the EVAP system to between 3.2 and 3.7 kPa (24 and 28 mmHg).
(f) Repair or replace the leak point.
HINT:
Disconnect the hose between the canister and fuel tank from the canister. Block the canister side and conduct
GO TO STEP 49
38.
REPAIR CANISTER PUMP MODULE
(a) Replace the canister pump module
.
NOTICE:
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
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