Engine Diagnostic Codes And Meanings

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

Code Search

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

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

	Example: 0120

Engine Diagnostic Codes And Meanings

How to Read Codes From Your Check Engine Light ?

Engine Light Glossary

All Engine Codes

Code Search

Common OBD/2 Fault Codes :