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== In automobiles ==
Error codes in automobiles, sometimes referred to as trouble codes, indicate to a driver or car mechanic what is wrong with a vehicle before repairs are initiated.<ref>{{
In [[vehicle]]s with [[CAN bus]]es, error codes are often five-digit codes that pinpoint a particular car fault. Car owners can make use of an [[on-board diagnostics]] scanner or an owner's manual to identify the meaning of a trouble code. Five-digit diagnostic trouble codes typically consist of one letter and four numbers (e.g. [https://www.vautobasics.com/error-codes/error-p0123-code-fix/ P0123]).<ref>{{
==See also==
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