Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 3UR-FE ENGINE CONTROL

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR P0022)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OCV)

CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022)

CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TOOTH OF TIMING CHAIN)

INSPECT CAMSHAFT OIL CONTROL VALVE ASSEMBLY

INSPECT OIL CONTROL VALVE FILTER

REPLACE INTAKE CAMSHAFT TIMING GEAR

CHECK WHETHER DTC OUTPUT RECURS

DTC P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)

DTC P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1)

DTC P0021 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2)

DTC P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2)

DESCRIPTION

The VVT system includes the ECM, Camshaft 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. Camshaft timing control is performed according to engine operating conditions such as the intake air volume, throttle valve position and engine coolant temperature. The ECM controls the OCV based on the signals transmitted by several sensors. The VVT controller regulates the intake camshaft angle using oil pressure through the OCV. As a result, the relative positions of the camshaft and crankshaft are optimized, the engine torque and fuel economy improve, and the exhaust emissions decrease under overall driving conditions. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control. This is how the target intake valve timing is verified by the ECM.


Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1). 3UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

DTC CodeDTC Detection ConditionTrouble Area
P0011
P0021		The intake valve timing is not adjusted in the valve timing advance range (1 trip detection logic).
Valve timing
Camshaft Oil Control Valve (OCV) (for intake side of Bank 1, 2)
OCV filter
Camshaft timing gear
ECM
P0012
P0022		The intake valve timing is not adjusted in the valve timing retard range (2 trip detection logic).
Valve timing
OCV (for intake side of Bank 1, 2)
OCV filter
Camshaft timing gear
ECM

MONITOR DESCRIPTION

The ECM optimizes the intake valve timing using the VVT (Variable Valve Timing) system to control the intake camshaft. The VVT system includes the ECM, Camshaft 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 the VVT controller stuck malfunction and stores DTC(s).
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 during 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 presence of foreign objects in the OCV.
The monitor will run if all of the following conditions are met:
The engine is warm (the engine coolant temperature is 75°C [167°F] or higher).
The vehicle has been driven at more than 64 km/h (40 mph) for 3 minutes.
The engine has idled for 3 minutes.

WIRING DIAGRAM

Refer to DTC P0010 ().


INSPECTION PROCEDURE

  • HINT:
  • DTC P0011, P0012, P0021 or P0022 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. Foreign objects are filtered out by the oil filter.
  • HINT:
Abnormal BankAdvanced Timing Over
(Valve Timing is Out of Specified Range)		Retarded Timing Over
(Valve Timing is Out of Specified Range)
Bank 1P0011P0012
Bank 2P0021P0022
If DTC P0011 or P0012 is output, check the left bank VVT system for intake side 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 output, check the right bank VVT system for intake side circuit (for Bank 2).
Bank 2 refers to the bank that does not include the No. 1 cylinder.
Read freeze frame data using the intelligent tester. 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 P0011, P0012, P0021 OR P0022)

Connect the intelligent tester to the DLC3.

Turn the engine switch on (IG) and turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / DTC.

Read DTCs.

Result
ResultProceed to
P0011, P0012, P0021 or P0022 is outputA
P0011, P0012, P0021 or P0022 and other DTCs are outputB
  • HINT:
  • If any DTCs other than P0011, P0012, P0021 or P0022 are output, troubleshoot those DTCs first.
B
GO TO DTC CHART ()
A
2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OCV)

Connect the intelligent tester to the DLC3.

Start the engine.

Turn the tester on.

Warm up the engine.

Turn the A/C on.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank 1) or Control the VVT Linear (Bank 2).

Check the engine speed while operating the Camshaft Oil Control Valve (OCV) using the tester.

  • OK:
  • OperationSpecified Condition
    0%Normal engine speed
    100%Engine idles roughly or stalls
  • HINT:
  • Refer to "Data List / Active Test" [VVT OCV Duty #1, VVT Change Angle #1, VVT OCV Duty #2 and VVT Change Angle #2] ().
NG
Go to step 4
OK
3.CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022)

Connect the intelligent tester to the DLC3.

Turn the engine switch on (IG) and turn the tester on.

Clear the DTCs ().

Start the engine and warm it up.

Switch the ECM from normal mode to check mode using the tester.

Drive the vehicle for more than 10 minutes.

Read DTCs using the tester.

  • OK:
  • No DTC output.
NG
Go to step 4
OK
CHECK FOR INTERMITTENT PROBLEMS ()
4.CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TOOTH OF TIMING CHAIN)

Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1). 3UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Remove the cylinder head cover LH and RH.

Turn the crankshaft pulley, and align its groove with the timing mark "0" of the timing chain cover.

Check that the timing marks of the camshaft timing gears and camshaft timing exhaust gears are at the positions shown in the illustration.

  • OK:
  • Timing marks on camshaft timing gears are aligned as shown in the illustration.
NG
ADJUST VALVE TIMING ()
OK
5.INSPECT CAMSHAFT OIL CONTROL VALVE ASSEMBLY
Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1). 3UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200
Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1). 3UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Remove the OCV.

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    1 - 220°C (68°F)6.9 to 7.9 Ω

Check the valve operation.

  • OK:
  • Measurement ConditionSpecified Condition
    No battery voltage applied to terminals 1 and 2 → Battery voltage applied to terminals 1 and 2Valve moves quickly
NG
REPLACE CAMSHAFT OIL CONTROL VALVE ASSEMBLY ()
OK
6.INSPECT OIL CONTROL VALVE FILTER

Remove the OCV filter ().

Check that the filter is not clogged.

  • OK:
  • Filter is not clogged.
NG
CLEAN OIL CONTROL VALVE FILTER
OK
7.REPLACE INTAKE CAMSHAFT TIMING GEAR

Replace the intake camshaft timing gear ().

NEXT
8.CHECK WHETHER DTC OUTPUT RECURS

Connect the intelligent tester to the DLC3.

Turn the engine switch on (IG) and turn the tester on.

Clear the DTCs ().

Start the engine and warm it up.

Switch the ECM from normal mode to check mode using the tester.

Drive the vehicle for more than 10 minutes.

Read the output DTCs using the tester.

  • OK:
  • No DTC is output.
  • HINT:
  • DTC P0011, P0012, P0021 or P0022 is output when foreign objects in the engine oil are caught in some parts of the system. These codes will stay stored even if the system returns to normal after a short time. These foreign objects are then captured by the oil filter, thus eliminating the source of the problem.
NG
REPLACE ECM ()
OK
SYSTEM OK
3UR-FE ENGINE CONTROL
Land Cruiser URJ200 URJ202 GRJ200 VDJ200
SFI SYSTEM