General Information

Engine Control

P2016 Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 1) - General Information

Component Location





General Description

Variable Charge Motion Actuator (VCMA) is used for an adjustment of automotive flap and it is operated with two position, open and close. It makes swirl among intake air to reduce emission under cold start condition. This is worm gear driver type which doesn't guarantee restoring to limp home position in the case of loss of current supply. (This doesn't have mechanical return force due to no return spring.)

DTC Description

If VCM feedback signal circuit is short to ground, ECM 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)