The test engine gentle is a warning gentle on a automobile’s dashboard that signifies an issue with the engine or emissions management system. When the test engine gentle is on, it signifies that the automobile’s laptop has detected an issue and has saved a diagnostic bother code (DTC) in its reminiscence. The DTC can be utilized to determine the precise drawback that’s inflicting the test engine gentle to return on.
There are a selection of various methods to reset the test engine gentle. One widespread technique is to easily disconnect the battery for a couple of minutes. This can trigger the automobile’s laptop to lose energy and reset the DTCs. Nevertheless, this technique may also reset different settings within the automobile’s laptop, such because the radio presets and the clock. One other technique is to make use of a code reader to clear the DTCs. A code reader is a tool that may be plugged into the automobile’s diagnostic port and used to learn and clear DTCs.