OBD Guide

P3460

Cylinder 8 Deactivation/Intake Valve Control Circuit High

P3460 is an OBD-II diagnostic trouble code meaning: Cylinder 8 Deactivation/Intake Valve Control Circuit High. Common causes: open or short circuit in control circuit, malfunction of the cylinder deactivation solenoid valve. Estimated repair cost: $13–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$13–56 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Check Engine Light Is On
  • Possible misfire in cylinder 8

Causes

  • Open or short circuit in control circuit
  • Malfunction of the cylinder deactivation solenoid valve
  • Problems with the engine control unit (ECU)
  • Wiring harness damage
  • Corroded contacts or poor connection

How to Fix

  1. Check the integrity of wires and contacts in the control circuit
  2. Check the resistance of the solenoid valve
  3. Check the operation of the engine control unit
  4. Replace damaged components
  5. Clear contacts and restore connections

Related codes

Error P3460 by Vehicle Brand

FAQ

What does the P3460 code mean?

P3460 is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Deactivation/Intake Valve Control Circuit High

What causes a P3460 error code?

The most common causes of P3460 include: Open or short circuit in control circuit; Malfunction of the cylinder deactivation solenoid valve; Problems with the engine control unit (ECU); Wiring harness damage.

How do I fix a P3460 diagnostic trouble code?

To fix P3460: Check the integrity of wires and contacts in the control circuit. Check the resistance of the solenoid valve. Check the operation of the engine control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3460?

Yes, but get it checked soon

How much does it cost to fix P3460?

The estimated repair cost for P3460 is $13–56. Actual cost depends on your vehicle, location, and labor rates.

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