OBD Guide

P3479

Cylinder 10 Exhaust Valve Control Circuit Low

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

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Dips during acceleration

Causes

  • Solenoid valve malfunction
  • Open or short circuit in the circuit
  • Poor contact in connectors
  • Engine control unit malfunction
  • Wiring harness damage

How to Fix

  1. Check the condition of the solenoid valve
  2. Check the integrity of the control circuit
  3. Inspect connectors and contacts for oxidation
  4. Check circuit resistance
  5. If necessary, replace faulty components

Related codes

Error P3479 by Vehicle Brand