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P257F Body

Engine Hood Switch Circuit High

The hood switch input reads stuck high — short to battery voltage or open switch return. The body controller cannot detect when the hood is opened.

Affected components

  • Hood switch

Common causes

  • High likelihood: Switch wire shorted to battery voltage
  • Low likelihood: Connector pins corroded - high contact resistance
  • Low likelihood: Supply wire pinched against B+ source

Related codes

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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