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
P1508 Issue in Idle Air control valve (IACV)circuit
Honda Vehicle Speed and Idle Control System High severity
P1519 Issue in Idle Air control valve (IACV)circuit
Honda Vehicle Speed and Idle Control System High severity
P1522 Low voltage detected in brake booster pressure sensor
Honda Vehicle Speed and Idle Control System High severity
P1523 High voltage detected in brake booster pressure sensor
Honda Vehicle Speed and Idle Control System High severity
P1541 Low voltage detected in climate control sensor
Honda Computer Output Circuit High severity
P1565 Issue in Engine motor communication signal
Honda Vehicle Speed and Idle Control System High severity

Search fault codes

Scan your own car

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