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P23C3 Powertrain

Engine Coolant Bypass Valve C Position Sensor Circuit

A general circuit fault on the position sensor of the third engine coolant bypass valve C - typically used in advanced thermal management systems with multiple coolant loops.

Affected components

  • Coolant bypass valve c position sensor

Common causes

  • High likelihood: Open in sensor or wiring

Diagnostic notes

  • The malfunction indicator lamp may illuminate

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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