Malfunction Indicator Lamp (Mil)

The malfunction indicator lamp (MIL) only lights in the driver information module (DIM) (5/1) if certain specific emissions related diagnostic trouble codes (DTCs) are stored in the engine control module (ECM) (4/46) or transmission control module (TCM) (4/28). A text message is also displayed when the lamp lights. The signal between the driver information module (DIM) and engine control module (ECM) is directly connected.