OBD fault code library

Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.

Free on OBD DashX

Looking for real-world repair data?

OBD DashX shows which problems come with each code, how often they show up in other vehicles, and how to fix them — step by step.

  • Real-world fix data
  • How often it happens
  • Step-by-step repairs
Browse codes on OBD DashX No sign-up needed · available in 10 languages
P1167 O2 Sensor System Lambda Controller at the Limit Bank 2
Hyundai Fuel and Air Metering Medium severity
U135F /codes/dtcs/u135f
Communication Network System
P1170 ECM Barometric Pressure Sensor
Hyundai Fuel and Air Metering High severity
P1171 Electronic Throttle System Open
Hyundai Injector Circuit High severity
P1173 Electronic Throttle System Rationality Malfunction
Hyundai Injector Circuit High severity
P1174 Electronic Throttle System 1 Close Malfunction
Hyundai Injector Circuit High severity
P1175 Electronic Throttle System 2 Close Malfunction
Hyundai Injector Circuit High severity
P1177 Electronic Throttle Body Motor Open/Short 2
Hyundai Injector Circuit High severity

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.