OBD Guide

U3568

Anode Multifunction Valve Control Circuit

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

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Problems with the EGR system

Causes

  • Open or short circuit in control circuit
  • Multifunction valve malfunction
  • Wiring Harness Problems
  • Engine control unit (ECU) malfunction
  • Corrosion of contacts or connectors

How to Fix

  1. Check valve control circuit integrity
  2. Check valve resistance and operation
  3. Inspect the wiring harness for damage
  4. Check contacts and connectors for corrosion
  5. If necessary, replace the multifunction valve

Related codes

Error U3568 by Vehicle Brand