P0494 OBD II Trouble Code Fan Speed Low

Symptoms of P0494 OBD II Trouble Code

  • Engine overheating
  • Engine noises
  • Poor performance
  • Engine misfiring
  • Stalling
  • Poor fuel mileage

Common Causes of P0494 OBD II Trouble Code

  • Broken or damaged wiring harness
  • Malfunctioning fan clutch
  • Cooling fan clutch or bearing defective
  • Cooling fan relay defective
  • ECM issue
  • Pin/connector problem (e.g. corrosion)