Toyota Tundra (2015 year). Manual — part 1232
A
OK
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter
.
B
REPLACE MASS AIR FLOW METER
74.
CHECK HARNESS AND CONNECTOR (ECM - MASS AIR FLOW METER)
(a) Check the harnesses and connectors, referring to DTC P0102 inspection procedure
.
HINT:
REPAIR OR REPLACE HARNESS OR CONNECTOR
75.
PERFORM DRIVE TEST
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature stabilizes.
HINT:
The A/C switch and all accessory switches should be off.
(c) Idle the engine.
DATA LIST
SPECIFIED CONDITION
Calculate Load
Perform "Inspection After Repair" after replacing the mass air flow meter
.
NG
REPLACE MASS AIR FLOW METER
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
OK
OK
76.
CHECK TERMINAL VOLTAGE (FUEL INJECTOR POWER SOURCE)
(a) Check the harnesses and connectors, referring to Fuel Injector Circuit inspection procedure
.
HINT:
REPAIR FUEL INJECTOR POWER SOURCE CIRCUIT
77.
CHECK IGNITION SYSTEM
(a) Perform ignition system On-vehicle Inspection
.
HINT:
Perform "Inspection After Repair" after repairing or replacing the ignition system
NG
REPAIR OR REPLACE MALFUNCTIONING PARTS,
COMPONENT AND AREA
78.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP DUTY)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump Duty.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
A
(e) When performing the Active Test, check for an operating sound from the fuel pump.
Standard:
CONTROL THE FUEL PUMP DUTY
SPECIFIED CONDITION
25 or 80%
Operating sound heard
OFF
Operating sound not heard
Result
RESULT
PROCEED TO
Abnormal
A
Normal
B
HINT:
GO TO STEP 80
79.
INSPECT FUEL PUMP
(a) Inspect the fuel pump
.
HINT:
Perform "Inspection After Repair" after replacing the fuel pump
.
NG
REPLACE FUEL PUMP
OK
CHECK FUEL PUMP CONTROL CIRCUIT
80.
CHECK FUEL SYSTEM
(a) Check the fuel system.
Check the fuel pump operation.
Check the fuel leaks.
Check the fuel pressure.
Perform the Active Test (Control the Select Cylinder Fuel Cut).
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
A
A
HINT:
For the fuel system On-vehicle Inspection, refer to the following procedures
.
Result
RESULT
PROCEED TO
Abnormal
A
Normal
B
B
CHECK FOR INTERMITTENT PROBLEMS
81.
CHECK FUEL SYSTEM
(a) Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and
inside the fuel tank), and for signs that the fuel pump was stuck.
Result
RESULT
PROCEED TO
There is foreign matter or signs that fuel pump was stuck
A
There is no foreign matter and no signs that fuel pump was stuck
B
HINT:
If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign
matter.
B
REPAIR OR REPLACE FUEL SYSTEM
82.
CHECK FUEL SYSTEM
(a) Check the fuel system.
Check the fuel pump operation.
Check the fuel leaks.
Check the fuel pressure.
Perform the Active Test (Control the Select Cylinder Fuel Cut).
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
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