P0638 OBD II Trouble Code Throttle Actuator Control Range/Performance (Bank 1) DTC

Symptoms of P0638 OBD II Trouble Code

  • Check Engine Light illuminated (Malfunction Indicator Lamp)
  • The vehicle may feel like it hesitates on acceleration

Common Causes of P0638 OBD II Trouble Code

  • Pedal position sensor malfunction
  • Throttle position sensor malfunction
  • Throttle actuator motor malfunction
  • Dirty throttle body
  • Wiring harness, loose or dirty connections
  • PCM/ECM Malfunction