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
Fault codes
P1505
Air leakage detected in Positive Crankcase Ventilation (PCV)
Honda
Vehicle Speed and Idle Control System
High severity
P1509
Issue in Idle Air control valve (IACV)circuit
Honda
Vehicle Speed and Idle Control System
High severity
P1524
Issue in brake booster pressure sensor
Honda
Vehicle Speed and Idle Control System
High severity
P1569
Invalid temperature signals detected in Battery module
Honda
Computer Output Circuit
High severity
P1577
Voltage Signals from motor drive module (MDM) is higher than limits
Honda
Computer Output Circuit
High severity
P1583
Issue in engine motor current signals
Honda
Vehicle Speed and Idle Control System
High severity
P1586
Current in Motor Power Inverter (MPI) module out of limits
Honda
Computer Output Circuit
High severity
P1635
Internal malfunction detected in Battery Control Module
Honda
Computer Output Circuit
High severity
P1640
Engine motor torque signals lower than limits
Honda
Vehicle Speed and Idle Control System
High severity
P1644
Issue in engine motor current signals
Honda
Vehicle Speed and Idle Control System
High severity
P1645
Issue in engine motor current signals
Honda
Vehicle Speed and Idle Control System
High severity
Scan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.