Code Definition

P0024 — Camshaft Position B - Timing Over-Advanced or System Performance (Bank 2)

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

About P0024

P0024 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 P0024 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour; 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 P0024 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

P0024 relates to the variable valve timing system on the B camshaft of bank 2, which on most engines is the exhaust camshaft on the cylinder bank that does not contain cylinder number one. The engine control module commands a cam phaser using an oil control valve to advance and retard cam timing, and it confirms the result with the camshaft and crankshaft position sensors. DTC P0024 sets when the actual B camshaft timing is more advanced than the ECM commanded, or the system does not respond correctly, usually because of an oil control valve fault, a stuck phaser, or an oil flow problem. When ...

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