OBD-II Diagnostic Trouble Codes
Search and browse thousands of OBD2 diagnostic trouble codes. Find detailed definitions for your vehicle's check engine light codes.
Browse by Category
Search by OBD code and browse by category.
B
Body Codes
Body codes (B-codes) cover vehicle body functions including airbags, seat belts, power windows, lighting, horn, wipers, and more.
1164 codes
C
Chassis Codes
Chassis codes (C-codes) relate to chassis systems including anti-lock brakes (ABS), traction control, steering, and suspension.
486 codes
U
Network Codes
Network codes (U-codes) cover vehicle communication network issues including CAN bus, module communication failures, and data link faults.
299 codes
P
Powertrain Codes
Powertrain codes (P-codes) relate to engine, transmission, and drivetrain systems. These are the most common diagnostic trouble codes.
1446 codes