Turn off a malfunction indicator light, commonly called a check engine light, by rectifying the issue triggering the on-board diagnostic system to activate the light. Determine the cause of malfunction indicator light ac... More »

Malfunction indicators are called idiot lights because they identify a vehicle's problem so clearly even unintelligent people are expected to understand them. These lights are displayed on a vehicle's dashboard when a sy... More »

A malfunction indicator lamp is another name for the "Check Engine" light on an automobile. This illumination is also known as a malfunction indicator lamp, or MIL, and is typically indicative of a problem in a car's eng... More »

Some common issues that result in the malfunction indicator light turning on in Dodge vehicles include the need for an oxygen sensor replacement and a gas cap error. If these issues are not resolved, drivers may end up c... More »

The EPC light on a Volkswagon Jetta is the Electronic Power Control indicator, which comes on when the vehicle experiences a motor malfunction. The purpose of the EPC light is to alert the driver to engine trouble so tha... More »

The most common issue caused by a damaged, cracked or missing gas cap in modern vehicles is that it inhibits the fuel system's vapor evaporation system, which triggers the check engine light to turn on. Having a damaged ... More »

The light can be cleared by fixing the original malfunction, disconnecting the battery, or resetting the on-board diagnostic, or OBD, system with a scanner. It is important to ascertain the cause of the light before clea... More »