Free PDF guide
Complete OBD2 Codes List PDF
All 1,387 P, B, C and U codes with their meaning, severity and whether you can keep driving.
- 53-page PDF, ready to print or read on your phone
- Instant download, plus a copy of the link in your inbox
- Free in exchange for your email
- Available in English and Spanish
The most complete list to keep at hand when your scanner shows a code. Every code comes with its meaning in plain English, the system it belongs to, how serious it is and whether you can keep driving, sorted so you find yours in seconds.
Before the list there are visual pages that explain everything without jargon: how to read a code, what bank 1 and sensor 2 mean, what to do if the light is steady or flashing, and an index by code block (P01xx, P03xx, U0xxx...). Every code links to its free page on codigosdtc.net, with causes and diagnostic steps.
What the guide covers
- How to use the list and color key
- Index by code block
- Steady or flashing light: what to do
- How to read an OBD2 code (visual plate)
- Bank 1, bank 2, sensor 1 and sensor 2
- Generic P0 codes: air, fuel, ignition, emissions, idle, computer and transmission
- P1 manufacturer codes and P2 extended codes
- B body, C chassis and U network codes
- Diagnosis in 5 steps
