Malfunction indicator lamp (MIL)

The malfunction indicator lamp (MIL) only lights in the combined instrument panel (driver information module) (5/1), if certain emissions related diagnostic trouble codes (DTCs) are stored in the engine control module (ECM) (4/46) or gearbox control module (TCM) (4/28). The signal between the driver information module and engine control module (ECM) is directly connected.