Complete Diagnostic Database
OBD-II
CODE GUIDE
Browse thousands of fault codes built from verified SAE J2012 standards and real-world scan data. Every code includes severity, common causes, repair cost estimates, and a verified diagnostic explanation.
P0606moderate
Understanding PCM Processor Faults
Published 5/27/2026
P0460moderate
Understanding Fuel Level Sensor Circuit Malfunction
Published 5/27/2026
P0201moderate
Understanding Injector Circuit Malfunction - Cylinder 1
Published 5/27/2026
C004Cmoderate
Understanding Brake Booster Motor A Position Sensor Issues
Published 5/27/2026
C004Bmoderate
Understanding Brake Fluid Level Sensor Issues
Published 5/27/2026
C004Amoderate
Understanding Brake Lining Wear Sensor Malfunctions
Published 5/26/2026
C0049moderate
Understanding Brake Fluid Level Malfunction
Published 5/26/2026
C0048moderate
Understanding Brake Booster Travel Sensor Malfunction
Published 5/26/2026
C0047moderate
Understanding Brake Booster Pressure Sensor Malfunctions
Published 5/26/2026
C0046moderate
Understanding Brake Pressure Sensor Malfunctions
Published 5/26/2026
C0045moderate
Understanding Brake Pressure Sensor B Malfunction
Published 5/26/2026
C0044moderate
Understanding Brake Pressure Sensor Malfunctions
Published 5/26/2026