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P28F3 Powertrain

Engine Disconnect Clutch Pressure Sensor Circuit Low

Voltage on the engine disconnect clutch pressure sensor signal line is below the expected window. Wire shorted to ground or sensor short.

Affected components

  • Engine disconnect clutch pressure sensor
  • Wiring harness

Common causes

  • High likelihood: Signal wire shorted to ground
  • Medium likelihood: Internal sensor short
  • Low likelihood: Connector pins corroded - high contact resistance

Possible symptoms

  • Check engine or transmission warning light on
  • Harsh, delayed, or missing shifts
  • Possible limp mode (locked in one gear)
  • Slipping or shuddering during gear changes

Diagnostic notes

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

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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