Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.
By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work.
This system consists of- | the CVVT Oil Control Valve (OCV) which supplies the engine oil to the cam phaser or runs out the engine oil from the cam phaser in accordance with the ECM PWM (Pulse With Modulation) control signal, |
- | the CVVT Oil Temperature Sensor (OTS) which measures the engine oil temperature, |
- | the Cam Phaser which varies the cam phase by using the hydraulic force of the engine oil. |
General Safety Information and Caution
Precautions
General Precautions
Please read the following precautions carefully before performing the airbag system
service.
Observe the instructions described in this manual, or the ...
Inspection
1.
The rear glass defogger switch
inputs can be checked using the GDS.
2.
To check the input value of rear
glass defogger switch, select option "Body Control Mod ...
Hazard Warning Flasher
The hazard warning flasher causes the rear tail lights and front turn signal
lights to flash on and off, which serves as a warning to other drivers to exercise
caution when approaching or passin ...