OBD Guide

P3489

Cylinder 12 Deactivation/Intake Valve Control Circuit/Open

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

Symptoms

  • Unstable engine operation
  • Increased vibration
  • Power reduction
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Open circuit control
  • Solenoid valve malfunction
  • Problems with the engine control unit
  • Wiring harness damage
  • Mechanical problems with the VVT system

How to Fix

  1. Check the integrity of the control circuit
  2. Test the solenoid valve
  3. Inspect the wiring harness for damage
  4. Check the operation of the VVT system
  5. Scan the control unit for additional errors

Related codes

Error P3489 by Vehicle Brand