Code Definition

P054C — Exhaust camshaft over advanced - Bank 2, Sensor 2

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

About P054C

P054C 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 P054C is stored, the module has detected a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine; and a sensor-related fault — the reported value from the named sensor is out of spec.

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 P054C 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

Fault code P054C is set when the vehicle's powertrain control module (PCM) detects that the exhaust camshaft position for Bank 2 is more advanced than what the PCM expects, as indicated by the camshaft position sensor 2 on Bank 2. An over-advanced camshaft position can be due to timing issues within the camshaft timing system, affecting engine efficiency, performance, and emissions. Bank 2 refers to the side of the engine opposite to where the first cylinder is located, usually in V-shaped engines.

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