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P3480 Powertrain

Cylinder Deactivation Solenoid Bank 2 Control Circuit Open

The engine control module has detected an open circuit at the bank 2 cylinder deactivation solenoid. The solenoid routes oil pressure to the switching lifters on bank 2; an open circuit prevents activation and the system disables deactivation requests on bank 2.

Affected components

  • Cylinder deactivation solenoid
  • Engine wiring harness
  • Ecm

Common causes

  • High likelihood: Solenoid coil open
  • Medium likelihood: Wiring or connector open
  • Low likelihood: ECM driver failed

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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