The ‘ P’ means that the problem is in the powertrain. For example, if you get the code P0219, it means that the car has an engine over-speed condition. It can be any number between 0 and 99.Īs you can see, a typical DTC has five characters in total, and each one of those characters gives it a description. This number defines the exact problem that you’re dealing with. The final piece of a DTC is a two-digit number. There are eight systems in total:Ġ – Fuel and air metering and auxiliary emission controlsĢ – Fuel and air metering (injector circuit)ĥ – Vehicle speed control and idle control systemsĪ-F – Hybrid Trouble Codes The Fourth And Fifth Characters (Number) This number denotes the particular vehicle system that has a fault. This number can only be ‘0’, ‘1’, ‘2’, or ‘3’.Ġ – If it’s a ‘0’, ‘2’, or ‘3’, the code is a standardized (SAE) code also known as generic codeġ – If it’s a ‘1’, you’re looking at a manufacturer-specific code The Third Character (Number/Letter) The Second Character (Number)Ī number usually follows the first letter. It covers mechanical systems and functions like steering, suspension, and braking. These are parts mainly found in the passenger compartment area.Ĭ – Chassis. These are functions that are managed and shared by onboard computer systems.ī – Body. It includes the engine, transmission, and all the associated accessories. The First Character (Letter)Īll OBDII codes start with a letter that denotes the part of the vehicle that has a fault. An OBD2 code is interpreted by reading the letters and numbers it contains.

When you look at an OBD2 code, you can immediately tell where the fault is by reading the letters and numbers it contains.īelow is a breakdown. They include the engine control module, body, chassis, etc. OBD provides monitoring for various systems. Full-generic-and-manufacturer-specific-obd2-code-list Download How to Interpret An OBD2 Code

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