P0661

DTC P0661 Intake Manifold Tuning Valve Control Circuit Low
DTC P0662 Intake Manifold Tuning Valve Control Circuit High

DESCRIPTION

DTC Detection Condition:

Based on the engine speed and throttle opening angle information from the ECM, the acoustic control induction system controls the intake air control valve actuator. In order to change the effective length of the intake manifold, the air control valve actuator opens and closes the intake manifold's ACIS valve via the link. As a result, the low-to-medium speed range torque and high rpm range performance are improved.

Wiring Diagram:

Step 1:

Step 1(Continued)-2:

Step 3:

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester or Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.