Toyota Tundra. Manual — part 1516

MONITOR DESCRIPTION

To monitor the correlation of the intake camshaft position and crankshaft position, the ECM checks the VVT
learning value while the engine is idling. The VVT learning value is calibrated based on the camshaft position
and crankshaft position. The intake valve timing is set to the most retarded angle while the engine is idling. If
the VVT learning value is out of the specified range in consecutive driving cycles, the ECM illuminates the
MIL and sets the DTC P0016 (Bank 1) or P0018 (Bank 2).

To monitor the correlation of the exhaust camshaft position and crankshaft position, the ECM checks the VVT
learning value while the engine is idling. The VVT learning value is calibrated based on the camshaft position
and crankshaft position. The exhaust valve timing is set to the most advanced angle while the engine is idling. If
the VVT learning value is out of the specified range in consecutive driving cycles, the ECM illuminates the
MIL and sets the DTC P0017 (Bank 1) or P0019 (Bank 2).

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

Intake Side

TYPICAL ENABLING CONDITIONS - INTAKE SIDE

P0019

Deviation in crankshaft position
sensor signal and VVT sensor 2
(for Exhaust Camshaft Bank 2)
signal (2 trip detection logic)



Mechanical system (Timing
chain has jumped tooth or
chain stretched)



ECM

Related DTCs

P0016: Camshaft timing misalignment at idling (Bank 1 Intake Side)
P0017: Camshaft timing misalignment at idling (Bank 1 Exhaust Side)
P0018: Camshaft timing misalignment at idling (Bank 2 Intake Side)
P0019: Camshaft timing misalignment at idling (Bank 2 Exhaust Side)

Required Sensors/Components VVT actuator
Required Sensors/Components Camshaft position sensor, Crankshaft position sensor
Frequency of Operation

Once per driving cycle

Duration

Within 1 minute

MIL Operation

2 driving cycles

Sequence of Operation

None

Monitor runs whenever following DTCs
not present

P0010, P0020 (VVT Oil Control Valve)
P0016, P0018 (VVT System - Misalignment)
P0102, P0103 (Mass Air Flow Sensor)
P0115, P0117, P0118 (Engine Coolant Temperature Sensor)
P0125 (Insufficient Coolant Temperature for Closed Loop
Fuel Control)
P0335 (Crankshaft Position Sensor)
P1340 (Camshaft Position Sensor)

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Exhaust Side

TYPICAL ENABLING CONDITIONS - EXHAUST SIDE

TYPICAL MALFUNCTION THRESHOLDS

Intake side:

TYPICAL MALFUNCTION THRESHOLDS - INTAKE SIDE

Exhaust side:

TYPICAL MALFUNCTION THRESHOLDS - EXHAUST SIDE

WIRING DIAGRAM

Refer to DTC P0335 .

Refer to DTC P0340 .

Refer to DTC P0365 .

INSPECTION PROCEDURE

VVT feedback mode

Executing

VVT

Maximum retarded position

Engine speed

400 to 1400 RPM

Monitor runs whenever following DTCs
not present

P0013, P0023 (Exhaust VVT Oil Control Valve)
P0017, P0019 (Exhaust VVT System - Misalignment)
P0102, P0103 (Mass Air Flow Sensor)
P0115, P0117, P0118 (Engine Coolant Temperature Sensor)
P0125 (Insufficient Coolant Temperature for Closed Loop
Fuel Control)
P0335 (Crankshaft Position Sensor)
P1340 (Camshaft Position Sensor)

VVT feedback mode

Executing

VVT

Maximum advanced position

Engine speed

400 to 1400 RPM

One of following conditions met

-

VVT learning value when camshaft maximum retarded

Less than 22.23°CA

VVT learning value when camshaft maximum retarded

More than 46.68°CA

One of following conditions met

-

VVT learning value when camshaft maximum retarded

Less than 82.23°CA

VVT learning value when camshaft maximum retarded

More than 106.68°CA

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

HINT:

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data
from the time the malfunction occurred.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0016, P0017, P0018 OR P0019)

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON and turn the Techstream ON.

c. Enter the following menus: Powertrain/Engine and ECT/Trouble Codes.

d. Read DTCs.

Result

RESULT REFERENCE

B: GO TO DTC CHART

A: Go to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE OCV)

HINT:

If the VVT system can be operated through the Active Test, it can be assumed that the VVT system is
operating normally.

a. Connect the Techstream to the DLC3.

b. Start the engine and turn the Techstream ON.

c. Warm up the engine.

d. Enter the following menus: Powertrain/Engine and ECT/Active Test/Control the VVT Linear

(Bank 1) or Control the VVT Linear (Bank 2) or Control the VVT Exhaust Linear (Bank 1) or
Control the Exhaust VVT Linear (Bank 2)/All Data/VVT Change Angle #1, VVT Change Angle
#2, VVT Ex Chg Angle #1, VVT Ex Chg Angle #2.

e. Perform the Active Test. Check that the displacement angle varies.

OK: Varies

NG: Go to step 4

OK: Go to next step.

Result

Proceed to

P0016, P0017, P0018 or P0019 is output

A

P0016, P0017, P0018 or P0019 and other DTCs are output B

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

3. ADJUST VALVE TIMING

a. Adjust the valve timing (see REASSEMBLY ).

NEXT: Go to step 6

4. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE (See INSPECTION PROCEDURE )

NG: REPLACE CAMSHAFT TIMING OIL CONTROL VALVE (See REMOVAL )

OK: Go to next step.

5. REPLACE CAMSHAFT TIMING GEAR

a. Replace the camshaft timing gear (see REASSEMBLY ).

6. CONFIRM WHETHER DTC OUTPUT RECURS

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON and turn the Techstream ON.

c. Clear the DTC (see DTC CHECK/CLEAR ).

d. Start the engine and warm it up.

e. Switch the ECM from normal mode to check mode using the Techstream (see CHECK MODE

PROCEDURE ).

f. Drive the vehicle in an urban area for approximately 10 minutes.

g. Read DTCs using the Techstream.

OK: No DTC is output.

NG: GO TO DTC CHART

OK: END

DTC P0031 OXYGEN (A/F) SENSOR HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1);
DTC P0032 OXYGEN (A/F) SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1);
DTC P0051 OXYGEN (A/F) SENSOR HEATER CONTROL CIRCUIT LOW (BANK 2 SENSOR 1);
DTC P0052 OXYGEN (A/F) SENSOR HEATER CONTROL CIRCUIT HIGH (BANK 2 SENSOR 1)

DESCRIPTION

Refer to DTC P2195 .

HINT:



Although the DTC titles say oxygen sensor, these DTCs relate to the Air-Fuel Ratio (A/F) sensor.



Sensor 1 refers to the sensor mounted in front of the Three-Way Catalytic Converter (TWC) and located
near the engine assembly.



When one of these DTCs is set, the ECM enters fail-safe mode. The ECM turns off the A/F sensor heater

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra