Code Definition

P0663 — Variable intake air solenoid circuit open - Bank 2

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0663

P0663 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0663 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit; and a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0663 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The fault code P0663 is set when the Engine Control Module (ECM) detects an open circuit in the control circuit of the Variable Intake Air System Solenoid for Bank 2. This solenoid is integral to the system that manages the airflow in the intake manifold, optimising engine performance at different RPMs. An open circuit implies a break or disconnection in the electrical pathway that controls the solenoid. This issue can lead to the improper operation of the variable intake system, potentially resulting in reduced engine performance, particularly affecting power and efficiency across various eng...

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