Code result

P254F

Engine Hood Switch Circuit

Moderate severity

What it means

General electrical fault on the engine hood (bonnet) switch circuit. The hood switch tells the body controller and (on hybrids) the high-voltage system that the hood is open — used for security, alarm and HV-safety interlock. With the input invalid, alarm logic and HV interlock fall back to a safe state.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Open or shorted hood-switch wire

    high

    One of the most commonly reported causes for this code — check this first.

  • Aged switch with corroded contacts

    medium

    A plausible cause — test and verify before replacing parts.

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