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Engine Codes – Warn You If The On-Board Diagnostics Detects A Problem
So, On-Board-Diagnostic (OBD) trouble codes are one way your vehicle communicates with a mechanic. Every car built since 1996 has an OBD computer system that monitors and identifies issues. In particular, it looks for issues that may result in harmful and polluting emissions from exhaust gases. When this system identifies an issue it turns on the check engine light and records an OBD code.
OBD codes are accessed by plugging a code reader into the vehicle’s OBD port. These codes provide a mechanic with information about the system and the conditions under which the issue was first identified. However, they can’t provide a clear-cut solution to the actual cause of the problem – only clues for where to look.
Is your Check Engine light on? Are you wondering what it means? Your car knows, and it stores comprehensive information on what’s wrong in the form of Trouble Codes. Since 1996, all cars sold in North America have used a common On Board Diagnostics system. (OBD-II) It not only alerts drivers that there’s a problem (the Check Engine light); but stores Trouble Codes that help car owners and service technicians to pinpoint; exactly what service your car needs.
Standard or generic fault codes are a list of codes common to all manufacturers. This list of faults, also called DTC (for Data Trouble Code) has been defined; so that any diagnostic device can read and decode them.
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