2GR-FE ENGINE CONTROL SYSTEM
– SFI SYSTEM
ES–99
ES
DESCRIPTION
The Variable Valve Timing (VVT) system includes the ECM, 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 exhaust 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 exhaust 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
P0013
Camshaft Position "B" Actuator Circuit / Open
(Bank 1)
DTC
P0023
Camshaft Position "B" Actuator Circuit / Open
(Bank 2)
DTC No.
DTC Detection Condition
Trouble Area
P0013
Open or short in OCV for exhaust camshaft (bank 1)
circuit
(1 trip detection logic)
•
Open or short in OCV for exhaust camshaft (bank
1) circuit
•
OCV for exhaust camshaft (bank 1)
•
ECM
P0023
Open or short in OCV for exhaust camshaft (bank 2)
circuit
(1 trip detection logic)
•
Open or short in OCV for exhaust camshaft (bank
2) circuit
•
OCV for exhaust camshaft (bank 2)
•
ECM
Crankshaft Position Sensor
MAF Meter
Throttle Position Sensor
ECT Sensor
Vehicle Speed Signal
Camshaft Position Sensor
Target Valve Timing
Correction
Actual Valve Timing
ECM
Duty Control
Camshaft Timing
Oil Control Valve
(OCV)
Feedback
A103843E02
Summary of Contents for 2GR-FE
Page 176: ...ES 20 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES NEXT 20 CONDUCT CONFIRMATION TEST END ...
Page 247: ...2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES 91 ES OK REPLACE ECM See page ES 518 ...
Page 412: ...ES 256 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES A END ...
Page 447: ...2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES 291 ES OK REPLACE ECM See page ES 518 ...
Page 556: ...ES 400 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES A REPLACE TCM ...
Page 630: ...ES 474 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES OK REPLACE ECM See page ES 518 ...
Page 658: ...2GR FE ENGINE CONTROL SYSTEM VVT SENSOR ES 493 ES 22 INSTALL ENGINE UNDER COVER LH ...
Page 897: ...2GR FE STARTING SMART KEY SYSTEM ST 35 ST OK REPLACE MAIN BODY ECU ...
Page 923: ...2GR FE STARTING SMART KEY SYSTEM ST 61 ST OK REPLACE MAIN BODY ECU ...
Page 935: ...2GR FE STARTING SMART KEY SYSTEM ST 73 ST OK REPLACE MAIN BODY ECU ...
Page 940: ...ST 78 2GR FE STARTING SMART KEY SYSTEM ST OK REPLACE MAIN BODY ECU ...
Page 958: ...ST 96 2GR FE STARTING SMART KEY SYSTEM ST OK END MAIN BODY ECU DEFECTIVE ...