OBD Guide

P3486

Cylinder 11 Exhaust Valve Control Circuit Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$36–94 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Rough engine idling
  • Increase in harmful emissions

Causes

  • Exhaust valve control solenoid valve malfunction
  • Open or short circuit in the electrical circuit
  • Problems with the wiring harness or connectors
  • Mechanical failure of exhaust valve
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the exhaust valve control solenoid valve
  2. Check the integrity of the electrical circuit and connectors
  3. Test valve resistance and operation
  4. If necessary, replace the solenoid valve
  5. Check and reflash the ECU if necessary

Related codes

Error P3486 by Vehicle Brand