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P25E4

B Camshaft Position - Unable to Achieve Locked Position Bank 1

Attention levelRisk not classifiedDepends on symptoms

No verified severity assessment is available for this code yet. The code alone cannot determine whether driving is safe; check warnings, noises, temperatures and vehicle behaviour.

System groupEngine & powertrainRepair costs

Technical explanation

B Camshaft Position - Unable to Achieve Locked Position Bank 1. Basic catalogue definition; diagnostic details have not yet been reviewed.

Repair cost calculator

Indicative Romanian repair budgets, depending on the diagnosed repair. Choose your vehicle and compare available scenarios.

Code on this page

P25E4

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Model, year and engine (optional)

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Engine position sensing

General system guidance · not a confirmed diagnosis

A missing signal and incorrect mechanical correlation are different conditions. Establish sensor technology before taking measurements.

The association is based on the imported description. This information explains the system; it does not confirm a procedure for the exact code, model or engine. Verify applicability in manufacturer documentation.

Checks for this type of system

  1. Identify the sensor and target wheel using engine documentation.
  2. Have connectors, supply and signals checked under the fault conditions.
  3. Compare crank/cam signals when required by the procedure.

Useful diagnostic data, where available

  • Reported engine speed and synchronisation state.
  • Waveforms assessed with appropriate equipment.

Normal values and thresholds vary by vehicle and are not assumed here.

Mistakes to avoid

  • Replacing a sensor cannot repair broken wiring.
  • Do not apply an inductive-sensor resistance test to every Hall sensor.
System-guide sources

References support general principles, not individual verification of every associated code.

General codeBasic definition2 sources

Imported definition; diagnostic information is not yet editorially reviewed. The code does not confirm a failed part.

Sources, methodology and limitations

General sources explain definitions and principles; they do not confirm a universal repair. Use VIN-, engine- and controller-specific service information.

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