Malfunction Indicator Lamp (MIL)

Malfunction Indicator Lamp (MIL)




DESCRIPTION
The malfunction indicator lamp is controlled by the ECM. During prove out or when an engine control malfunction occurs, the ECM signals the combination meter (unified meter control unit) via the CAN lines and ground is provided to the malfunction indicator lamp.

When power and ground are supplied, the malfunction indicator lamp illuminates.

The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON without the engine running. This is a bulb check.
If the MIL does not light up, refer to "WARNING LAMPS", or see "MIL AND DATA LINK CONNECTOR".

2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has detected an engine system malfunction.