Toyota Tundra (2015 year). Manual — part 1229
OK
A
COMPONENT AND AREA
53.
READ FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were
present when the DTC was stored
.
Result
FREEZE FRAME DATA ITEM FOR DTC
P1605
RESULT
SUSPECTED AREA
PROCEED
TO
Intake air volume
insufficient
A
B
B
GO TO STEP 56
54.
CHECK INTAKE SYSTEM
(a) Check for air leakage in the intake system [vacuum hose disconnection, cracks, damaged gaskets,
etc.]
.
HINT:
If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the
vacuum inside the intake pipes increases and the air suction noise becomes louder.
If Short FT and Long FT are largely different from the normal values when idling (the intake air volume is
small) and almost the same as the normal values when racing the engine (the intake air volume is high),
air leakage may be present.
OK:
There is no air leakage.
HINT:
Perform "Inspection After Repair" after repairing or replacing the intake system
.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
NG
REPAIR OR REPLACE INTAKE SYSTEM
55.
CHECK INTAKE SYSTEM
(a) Check the intake system.
Inspect the brake booster assembly.
Inspect the mass air flow meter.
Check the PCV hose.
Inspect the PCV valve.
Inspect the purge VSV.
Result
RESULT
PROCEED TO
Abnormal
A
Normal
B
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter
.
B
GO TO STEP 62
A
REPAIR OR REPLACE MALFUNCTIONING PARTS,
COMPONENT AND AREA
56.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT LINEAR)
(a) Connect the Techstream to the DLC3.
(b) Turn the Techstream on.
(c) Warm up the engine.
(d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear
(Bank1) or Control the VVT Linear (Bank2).
HINT:
When performing the Active Test, make sure the A/C is on and the shift lever is in P or N.
(e) Check the engine speed while operating the camshaft timing oil control valve using the Techstream.
OK:
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
OK
TECHSTREAM OPERATION
SPECIFIED CONDITION
0%
Normal engine speed
100%
Engine idles roughly or stalls
HINT:
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (FOR INTAKE SIDE)
57.
CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (FOR INTAKE SIDE) - ECM)
(a) Check the harnesses and connectors, referring to DTC P0010 inspection procedure
.
HINT:
REPAIR OR REPLACE HARNESS OR CONNECTOR
58.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR)
(a) Connect the Techstream to the DLC3.
(b) Turn the Techstream on.
(c) Warm up the engine.
(d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust
Linear (Bank1) or Control the VVT Exhaust Linear (Bank2).
HINT:
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
OK
When performing the Active Test, make sure the A/C is on and the shift lever is in P or N.
(e) Check the engine speed while operating the camshaft timing oil control valve using the Techstream.
OK:
TECHSTREAM OPERATION
SPECIFIED CONDITION
0%
Normal engine speed
100%
Engine idles roughly or stalls
HINT:
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (FOR EXHAUST SIDE)
59.
CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (FOR EXHAUST SIDE) - ECM)
(a) Check the harnesses and connectors, referring to DTC P0013 inspection procedure
.
HINT:
REPAIR OR REPLACE HARNESS OR CONNECTOR
60.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION)
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or
higher.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
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