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P2D0B Powertrain

Motor Electronics Coolant Pump C Overspeed/Air in System

Motor electronics coolant pump C reports a overspeed/air in system condition. Power electronics cooling is impaired.

Affected components

  • Motor electronics coolant pump c
  • Power electronics coolant loop

Common causes

  • High likelihood: Air pocket in coolant loop
  • Medium likelihood: Coolant level low

Diagnostic notes

  • The malfunction indicator lamp may illuminate
  • Reduced-power or limp mode may occur

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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