7.3 INJECTOR DRIVER MODULE FAILS WHEN WARM CODE
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 systemsħ – Transmission The Fourth And Fifth Characters (Number) This number denotes the particular vehicle system that has a fault. This number can only be ‘0’ or ‘1’.Ġ – If it’s a ‘0’ then the code is a standardized (SAE) code also known as generic codeġ – If it’s a ‘1’ then you’re looking at a manufacturer-specific code The Third Character (Number) The first letter is usually followed by a number. 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.
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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. When you look at the code, you can immediately tell which system has a fault-based on how it appears.
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They include the engine control module, body, chassis, etc. OBD provides monitoring for various systems.