Toyota Tundra (2015 year). Manual — part 1153
OK
OK
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
D74-108 (#40) - D74-43
(E01)
Ignition switch ON
11 to 14 V
D74-84 (#50) - D74-43
(E01)
Ignition switch ON
11 to 14 V
D74-107 (#60) - D74-43
(E01)
Ignition switch ON
11 to 14 V
D74-83 (#70) - D74-43
(E01)
Ignition switch ON
11 to 14 V
D74-106 (#80) - D74-43
(E01)
Ignition switch ON
11 to 14 V
NG
GO TO FUEL INJECTOR CIRCUIT
30.
CHECK FUEL INJECTOR OF MISFIRING CYLINDER
(a) Check the injector injection [whether fuel volume is high or low, and whether injection pattern is
poor]
.
HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly
.
NG
REPLACE FUEL INJECTOR ASSEMBLY
31.
CHECK HARNESS AND CONNECTOR
.
HINT:
Repair any problems.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P0308;...
NEXT
A
32.
CHECK WHETHER DTC OUTPUT RECURS
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTC
.
(e) Turn the ignition switch off and wait for at least 30 seconds.
(f) Turn the ignition switch to ON and turn the Techstream on.
(g) Start the engine and warm it up.
(h) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving
Pattern.
(i) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
(j) Input the DTC: P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308.
(k) Check the DTC judgment result.
Result
RESULT
PROCEED TO
ABNORMAL
(DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308 is output)
A
NORMAL
(DTC is not output)
B
B
END
33.
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P0308;...
OK
NEXT
(a) Disconnect the MAF meter connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table
below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED
CONDITION
D7-3 (VG) - D74-74 (VG)
Always
Below 1 Ω
D7-2 (E2G) - D74-75 (E2G)
Always
Below 1 Ω
D7-3 (VG) or D74-74 (VG) - Body
ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
34.
REPLACE MASS AIR FLOW METER
(a) Replace the mass air flow meter
.
HINT:
.
35.
CHECK WHETHER DTC OUTPUT RECURS
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTC
.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P0308;...
(e) Turn the ignition switch off and wait for at least 30 seconds.
(f) Turn the ignition switch to ON and turn the Techstream on.
(g) Start the engine and warm it up.
(h) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving
Pattern.
(i) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
(j) Input the DTC: P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308.
(k) Check the DTC judgment result.
Result
RESULT
PROCEED TO
NORMAL
(DTC is not output)
A
ABNORMAL
(DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308 is output)
B
B
REPLACE ECM
A
END
36.
CHECK FUEL LINE
(a) Check the fuel lines for leaks or blockage.
HINT:
Perform "Inspection After Repair" after replacing the fuel pump
.
NG
REPAIR OR REPLACE FUEL LINE
OK
REPLACE FUEL PUMP
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P0308;...
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