Vehicle Diagnostic Guides
Select your vehicle make to see which OBD2 fault codes show up on it, what each code means, its typical repair cost range, and notes on specific models.
Engine guides Known problems, repair costs and buying checks for common engines.Audi
89 diagnostic code guides
BMW
153 diagnostic code guides
Chevrolet
13 diagnostic code guides
Citroen
2 diagnostic code guides
Dodge
1 diagnostic code guide
Fiat
2 diagnostic code guides
Ford
73 diagnostic code guides
Honda
33 diagnostic code guides
Hyundai
6 diagnostic code guides
Infiniti
1 diagnostic code guide
Jeep
2 diagnostic code guides
Kia
3 diagnostic code guides
Mazda
3 diagnostic code guides
Mercedes-Benz
67 diagnostic code guides
Mitsubishi
1 diagnostic code guide
Nissan
17 diagnostic code guides
Opel
20 diagnostic code guides
Peugeot
7 diagnostic code guides
Porsche
7 diagnostic code guides
Ram
1 diagnostic code guide
Renault
9 diagnostic code guides
SEAT
5 diagnostic code guides
Skoda
26 diagnostic code guides
Suzuki
2 diagnostic code guides
Toyota
58 diagnostic code guides
Volkswagen
157 diagnostic code guides
Volvo
2 diagnostic code guides