OBD2 · Fault Codes
Fault codes and their meanings
Codes are grouped by system. Each code page lists symptoms, likely causes and a cheapest-first check order.
Valve Timing
Valve Timing
Fuel System (Diesel)
Fuel System (Diesel)
Fuel & Air Metering
Fuel & Air Metering
Cooling System
Cooling System
Emission Control
Emission Control
Turbo & Intake
Turbo & Intake
Ignition
Ignition
Glow System (Diesel)
Glow System (Diesel)
Emission Control (Diesel)
Emission Control (Diesel)
Transmission