P2662 moderate

Cylinder 3 Deactivation Solenoid Control Circuit Open

The P2662 code means the vehicle's onboard diagnostic system has detected: Cylinder 3 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
  • Cylinder deactivation system inoperative
  • Higher fuel consumption than expected
  • Engine sounds different at cruise
  • Ticking noise from engine top end

Probable Causes (Ranked by Likelihood)

  • Open wiring to cylinder 3 deactivation solenoid Very High
  • Failed AFM/DFM solenoid High
  • Oil passage blockage to solenoid Moderate
  • ECM communication error Low

Step-by-Step Diagnostic Procedure

  1. Read freeze frame data and confirm P2662 is present

  2. Test solenoid resistance and compare to specifications

  3. Check oil passages and screen for blockage

  4. Verify ECM is commanding solenoid operation

Frequently Asked Questions

What does P2662 mean?

P2662 indicates a problem with the cylinder 3 deactivation solenoid control circuit open. This affects the vehicle's ability to deactivate cylinders for improved fuel economy.

Can I drive with a P2662 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 P2662?

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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