Engine Diagnostic Codes And Meanings

Code Search

Please fill the "Code Box" to find engine fault code.

Example: 0120

Nothing can knock your day off track faster than a check diagnostic engine light popping up on your dash. You wonder if you should pull over and shut off your vehicle or drive right to a shop. A engine diagnostic code reader will fix you make the drive or no drive decision and even help you fix the problem. It works by plugging into the car's computer system and displaying a engine trouble code.

Our diagnostic code reader is worth buying if you're a fairly competent amateur mechanic who understands how an engine works. But it's not a silver bullet that will always tell you exactly what's wrong. It'll give you a head start, but you'll still have to do some detective work before you start pulling and replacing parts (more on this later). And you will find a list of all domestic vehicle lines currently supported by our site. We add manufacturers, and update code lists daily, so be sure to check back often.

How to Read Codes From Your Check Engine Light ?

Modern vehicles are equipped with onboard computers that monitor the critical systems in your car and warn you when something is going wrong.

Engine Light Glossary

Glossary for engine trouble codes.

All Engine Codes

The all list of engine trouble codes.

Engine diagnostic code tool doesn't always have all of the codes preprogrammed into them. Often a scan tool will give you a code number, but not the description of what the code means.
For example. Your scan tool may give you code C1234 for a Ford vehicle ABS fault with no text explaining the code meaning of the problem area. This service allows you to enter your code number to get the code meaning from our huge database of over 15,000 codes..
Code C1234 = Speed Wheel, Right Front Input Signal Missing

Engine Part You Can Get Manufacturer Specific Codes (P, C, B and U Codes), plus OBD2 / EOBD codes for North American, Japanese, Korean, European and Australian cars.

P = Powertrain (Engine and Transmission, example code P1267)
B = Body (includes Airbags, example code B0013)
C = Chassis (includes ABS brakes, example code C1234)
U = Vehicle Network codes, (example code U2023)

Supported car brands for engine diagnosis process.
  • Acura
  • Alfa Romeo
  • Audi
  • BMW
  • Buick
  • Cadillac
  • Chevrolet
  • Chrysler
  • Citroen
  • Dacia
  • Daewoo
  • Daihatsu
  • Dodge
  • Jeep
  • Fiat
  • Ford
  • GMC
  • Honda
  • Hyundai
  • Infiniti
  • Isuzu
  • Jaguar
  • Kia
  • Lada
  • Lamborghini
  • Lancia
  • Land Rover
  • Lexus
  • Lincoln
  • Lotus
  • Mazda
  • Mercedes-Benz
  • Mini
  • Mitsubishi
  • Nissan
  • Peugeot
  • Renault
  • Saab
  • Saturn
  • Seat
  • Skoda
  • Smart
  • Subaru
  • Tata
  • Toyota
  • Volkswagen
  • Volvo