OBD Guide

P3495

Cylinder 12 Exhaust Valve Control Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Check Engine Light Illuminates
  • Possible misfire in cylinder 12

Causes

  • VVT solenoid valve malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Malfunction of the engine control unit (ECU)
  • Mechanical problems in the VVT system

How to Fix

  1. Check the condition of the VVT solenoid valve
  2. Check the integrity of the wiring harness and connectors
  3. Measure resistance and voltage in the control circuit
  4. Check the operation of the VVT system using a diagnostic scanner
  5. If necessary, replace faulty components

Related codes

Error P3495 by Vehicle Brand