Code Definition

P2009 — Variable Intake Manifold Control Solenoid Circuit Low - Bank 1

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

About P2009

P2009 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 P2009 is stored, the module has detected a signal or supply voltage lower than the expected operating range; 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 P2009 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

This fault code indicates that the Engine Control Module (ECM) has detected a low voltage condition in the intake manifold runner control (IMRC) solenoid circuit for Bank 1. The IMRC solenoid controls the movement of intake runners to optimise airflow based on engine speed and load. A low voltage condition suggests an electrical issue such as a short to ground, high resistance, or an open circuit.

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