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P3425 Powertrain

Cylinder 3 Deactivation/Intake Valve Control Circuit Open

The engine control module has detected an open circuit at the cylinder 3 deactivation or intake valve control solenoid. Without a valid circuit, cylinder 3 cannot be deactivated.

Affected components

  • Cylinder deactivation solenoid
  • Engine wiring harness

Common causes

  • High likelihood: Solenoid coil open
  • Medium likelihood: Wiring or connector open
  • Low likelihood: Pin pushed back out of connector body

Diagnostic notes

  • The malfunction indicator lamp may illuminate
  • This code can affect emissions
  • A drive cycle may be required after repair

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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