2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) P Code Charts Page 159

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing

Diagnostic Trouble Codes/DTC Check / Clear.

(e) Turn the engine switch off.

(f) Turn the engine switch on (IG) and turn the Techstream on.

(g) Start the engine and warm it up.

(h) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

(i) Enter the following menus: Powertrain / Engine / Utility / All Readiness.

(j) Input the DTC: P0016 or P0018.

(k) Check the DTC judgment result.

Result:

HINT

DTC P0016 or P0018 is output when foreign objects in engine oil are caught in some parts of the system. These codes will remain

stored even if the system returns to normal after a short time. These foreign objects may then be captured by the oil filter, thus

eliminating the source of the problem.

B -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and

Repair/Removal

A -- END

From 08/2009

2GR-FE ENGINE CONTROL: SFI SYSTEM: P0016,P0018: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)

P0018 - Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)

DESCRIPTION

The Variable Valve Timing (VVT) system includes the ECM, camshaft timing oil control valve assembly and VVT controller. The ECM sends a

target duty-cycle control signal to the camshaft timing oil control valve assembly. This control signal regulates the oil pressure supplied to the VVT

controller. Camshaft timing control is performed according to engine operating conditions such as intake air volume, throttle valve position and

engine coolant temperature. The ECM controls the camshaft timing oil control valve assembly, based on the signals transmitted from several sensors.

The VVT controller regulates the intake camshaft angle using oil pressure through the camshaft timing oil control valve assembly. 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.