Toyota Tundra (2015 year). Manual — part 1100
intake camshaft. The VVT system includes the ECM, Oil Control Valve (OCV) and VVT controller. The ECM
sends a target duty-cycle control signal to the OCV. This control signal regulates the oil pressure supplied
to the VVT controller. The VVT controller can advance or retard the intake camshaft.
If the difference between the target and actual intake valve timings is large, and changes in the actual
intake valve timing are small, the ECM interprets this as a VVT controller stuck malfunction and stores a
DTC.
Example:
A DTC is stored when the following conditions 1 and 2 are met:
1. It takes 5 seconds or more to change the valve timing by 5°CA.
2. After the above condition 1 is met, the camshaft timing oil control valve is forcibly activated for
10 seconds.
DTC P0011 and P0021 (Advanced Cam Timing) are subject to 1 trip detection logic.
DTC P0012 and P0022 (Retarded Cam Timing) are subject to 2 trip detection logic.
These DTCs indicate that the VVT controller cannot operate properly due to OCV malfunctions or the
Related DTCs
P0011: Advanced camshaft timing (for Bank 1)
P0012: Retarded camshaft timing (for Bank 1)
P0021: Advanced camshaft timing (for Bank 2)
P0022: Retarded camshaft timing (for Bank 2)
Required Sensors/Components
(Main)
VVT OCV and VVT Actuator
Required Sensors/Components
(Related)
Crankshaft position sensor, Camshaft position sensor and Engine coolant
temperature sensor
Duration
Within 10 seconds
MIL Operation
Advanced camshaft timing: Immediate
Retarded camshaft timing: 2 driving cycles
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs not
present
P0010, P0020 (VVT oil control valve)
P0016, P0018 (VVT system - Misalignment)
P0101, P0102, P0103 (Mass air flow meter)
P0107, P0108 (Manifold absolute pressure)
P0115, P0117, P0118 (Engine coolant temperature sensor)
P0125 (Insufficient Coolant Temperature for Closed Loop Fuel
Control)
P0335 (Crankshaft position sensor)
P0340, P1340 (Camshaft position sensor)
Battery voltage
11 V or more
Engine RPM
500 to 4000 rpm
ECT
75 to 100°C (167 to 212°F)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0011,P0012,...
TYPICAL MALFUNCTION THRESHOLDS
Advanced Camshaft Timing
All conditions are met:
-
More than 5°CA (Crankshaft Angle) for 5 seconds or more after the VVT
hold duty ratio learned value reaches the upper or lower limit.
Valve timing
No change at advanced valve timing
Retarded Camshaft Timing
All conditions are met:
-
More than 5°CA (Crankshaft Angle) for 5 seconds or more after the VVT
hold duty ratio learned value reaches the upper or lower limit.
Valve timing
No change at retarded valve timing
If the difference between the target and actual camshaft timings is greater than the specified value, the
ECM operates the VVT actuator.
Then, the ECM monitors the camshaft timing change for 10 seconds.
CONFIRMATION DRIVING PATTERN
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON and turn the Techstream on.
2.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation).
3.
Turn the ignition switch off and wait for at least 30 seconds.
4.
Turn the ignition switch to ON and turn the Techstream on [A].
5.
Start the engine and warm it up until the ECT reaches 75°C (167°F) or higher [B].
6.
Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [C].
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
7.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0011,P0012,...
Idle the engine for 3 minutes or more [D].
8.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [E].
9.
Read the pending DTCs.
HINT:
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
10.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11.
Input the DTC: P0011, P0012, P0021 or P0022.
12.
Check the DTC judgment result.
TECHSTREAM
DISPLAY
DESCRIPTION
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
N/A
Unable to perform DTC judgment
HINT:
If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE or N/A, perform steps [F] through [H].
13.
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
Depress the accelerator pedal by a large amount.
14.
Idle the engine for 3 minutes or more [G].
15.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [H].
16.
Read the pending DTCs.
HINT:
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
17.
Check the DTC judgment result again.
HINT:
If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
18.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0011,P0012,...
If the judgment result shows INCOMPLETE or N/A, perform the following procedure.
Perform a universal trip and check for permanent DTCs
.
HINT:
If a permanent DTC is output, the system is malfunctioning.
If no permanent DTC is output, the system is normal.
19.
WIRING DIAGRAM
Refer to DTC P0010
.
INSPECTION PROCEDURE
HINT:
DTC P0011, P0012, P0021 or P0022 may be set when foreign objects in the engine oil are caught in some
BANK
ADVANCED TIMING OVER
(VALVE TIMING IS OUT OF SPECIFIED
RANGE)
RETARDED TIMING OVER
(VALVE TIMING IS OUT OF SPECIFIED
RANGE)
Bank 1
P0011
P0012
Bank 2
P0021
P0022
If DTC P0011 or P0012 is displayed, check the left bank VVT system for intake camshaft circuit (for Bank
1).
Bank 1 refers to the bank that includes the No. 1 cylinder*.
*: The No. 1 cylinder is the cylinder which is farthest from the transmission.
If DTC P0021 or P0022 is displayed, check the right bank VVT system for intake camshaft circuit (for Bank
2).
Bank 2 refers to the bank that does not include the No. 1 cylinder.
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.
PROCEDURE
1.
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR
P0022)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(e) Read DTCs.
Result
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0011,P0012,...
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