Code Definition

P003F — Intake Camshaft Profile Control Stuck On - Bank 2 - Camshaft A

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

About P003F

P003F 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 P003F is stored, the module has detected 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 P003F 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 intake camshaft profile control system switches the intake valve lift or duration between a base profile and a high performance profile on Bank 2 Camshaft A, using engine oil pressure directed by an Engine Control Module (ECM) controlled solenoid to move a switching element inside the camshaft phaser or switching lifter assembly. The ECM confirms the resulting change through camshaft position sensor feedback and compares it against the commanded state. DTC P003F is set when the ECM commands the profile back to its base or off state but the feedback shows the mechanism has remained latched ...

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