Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Malfunction Indicator Lamp: Description and Operation

CHECK ENGINE (MALFUNCTION INDICATOR LAMP)
The Check Engine lamp (Malfunction Indicator lamp) illuminates when the ignition switch is in the ON position, and prior to starting the vehicle. The lamp turns off after the vehicle is started.

If, while the vehicle is running, a problem is detected in the engine control system, the lamp is illuminated. This is accomplished by the Powertrain Control Module (PCM) grounding the G3 circuit.