P2663 moderate

Cylinder 4 Deactivation Solenoid Control Circuit Open

The P2663 code means the vehicle's onboard diagnostic system has detected: Cylinder 4 Deactivation Solenoid Control Circuit Open. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
$300 - $2000 (parts and labor)
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Common Symptoms

  • Check Engine Light on
  • Unable to enter 4-cylinder mode
  • Increased fuel consumption
  • Engine running rougher than normal at steady cruise
  • Lifter tick from cylinder 4 area

Probable Causes (Ranked by Likelihood)

  • Open circuit in solenoid wiring harness Very High
  • Cylinder 4 deactivation solenoid coil failure High
  • Contaminated engine oil blocking solenoid Moderate
  • PCM driver failure Low

Step-by-Step Diagnostic Procedure

  1. Read freeze frame data and confirm P2663 is stored

  2. Test deactivation solenoid electrical resistance

  3. Check engine oil condition and level

  4. Inspect solenoid connector under valve cover

Frequently Asked Questions

What does P2663 mean?

P2663 indicates a problem with the cylinder 4 deactivation solenoid control circuit open. This affects the vehicle's ability to deactivate cylinders for improved fuel economy.

Can I drive with a P2663 code?

You can drive short distances. The cylinder deactivation system will be disabled, reducing fuel economy. Have it checked to prevent potential lifter damage.

How much does it cost to fix P2663?

Repairs typically cost $300 - $2000. Simple solenoid replacement is less expensive, but collapsed lifter repair can be $2,000 or more.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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