Diaglana
Sign in

Guide by make

Reading fault codes by car make

Generic codes are read the same way on every make. What changes is the rest: its control units, its diagnostic addresses and its service information. Pick yours.

Reviewed by Daniel Morales, founder of Reprorace SL, on

What every make has in common

  • The standard 16-pin diagnostic socket (SAE J1962), within reach of the driver's seat.
  • Emissions diagnostics (EOBD): on cars in the EU, gasoline ones since 2001 and diesels since 2004.
  • The generic codes (P0, P2, C0, B0 and U0), with the same meaning on every make.

What changes from one make to another

  • The manufacturer's own codes (P1, many P3, B1, C1, U1…), whose meaning only its service information gives.
  • How to reach the other control units: addresses, diagnostic gateways and protocols of each platform.
  • Service functions (maintenance, regeneration, calibrations), specific to each make.

Pick the make

Read your car's fault codes on your phone

See the ECO-LITE page or buy it in the shop at the final price.

See the ECO-LITESee it in the shop

Keep reading

Can we help you get started?

Leave us your details and we will tell you how Diaglana fits your workshop, your fleet or your car.