Component Location
General Description

Different from the existing fixed cam phase angle type, CVVT(Continuously Variable Valve Timing) is the device which varies cam phase angle continuously to be optimum. And with engine oil pressure, it operates. CVVT consists of OCV(Oil Control Valve) and cam phaser. OCV, mounted on cylinder head, controlls the amount and direction of oil delivered to cam phaser by oil valve which is connected to a solenoid. Cam phaser, rotating cam phaser rotor with pressure and amount of oil produced by OCV, rotates cam shaft forcefully for or against the rotating direction and finally, cam shaft phase changes. With the appliance of CVVT, engine power,fuel efficiency and the quality of exhaust gas are improved.

DTC Description

When PCM detects short to ground in OCV control circuit, PCM sets DTC P0076.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Circuit continuity check, low

● Poor connection

● Short to ground in control circuit

● OCV

Enable Conditions

Threshold Value

● Short circuit to ground

Diagnostic Time

● Continuous

MIL ON Condition

● 2 driving cycle

Specification

Temp.

Coil Resistance

20℃

7.4±0.5Ω

Schematic Diagram
note
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Signal Waveform
Яндекс.Метрика