General Information

Engine Control
P2017 Intake Manifold Runner Position Sensor/Switch Circuit High(Bank 1) - General Information

Component Location





General Description

The Variable Charge Motion Actuator(VCMA) is used to adjust a valve (flap) in the intake runner for each cylinder. The valve does not close off the runner but restricted in such a way to causes turbulence (swirl) in the air fuel mixture. The turbulence in the air will reduce emissions under cold start condition. The valve is operated by a worm gear type driver which doesn't open for a limp home position in the case of loss of current supply. (It doesn't have return spring.) The system also has a sensor to supply a feedback of the valve position to the PCM.

DTC Description

If VCM feedback signal circuit is open or short to battery, PCM determines that a fault exists and a DTC is stored.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data








Fig 1) Normal waveform of VCM actuator (OPEN)
Fig 2) Normal waveform of VCM actuator (Closed)