OBD Guide

P3427

Cylinder 4 Deactivation/Intake Valve Control Circuit Low

P3427 is an OBD-II diagnostic trouble code meaning: Cylinder 4 Deactivation/Intake Valve Control Circuit Low. Common causes: malfunction of the cylinder deactivation solenoid valve, open or short circuit in control circuit. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Possible misfire in cylinder 4
  • Reduced engine power
  • Disabling the cylinder deactivation system

Causes

  • Malfunction of the cylinder deactivation solenoid valve
  • Open or short circuit in control circuit
  • Poor contact in control circuit connectors
  • Engine control unit malfunction
  • Mechanical problems with the timing system

How to Fix

  1. Check the condition of the cylinder deactivation solenoid valve
  2. Check the integrity of the wiring and connectors in the control circuit
  3. Measure resistance and voltage in the control circuit
  4. Check the operation of the timing system
  5. If necessary, replace faulty components

Related codes

Error P3427 by Vehicle Brand

FAQ

What does the P3427 code mean?

P3427 is an OBD-II diagnostic trouble code that indicates: Cylinder 4 Deactivation/Intake Valve Control Circuit Low

What causes a P3427 error code?

The most common causes of P3427 include: Malfunction of the cylinder deactivation solenoid valve; Open or short circuit in control circuit; Poor contact in control circuit connectors; Engine control unit malfunction.

How do I fix a P3427 diagnostic trouble code?

To fix P3427: Check the condition of the cylinder deactivation solenoid valve. Check the integrity of the wiring and connectors in the control circuit. Measure resistance and voltage in the control circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3427?

Yes, but get it checked soon

How much does it cost to fix P3427?

The estimated repair cost for P3427 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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