Test O: Multifunction Indicator Lamp (MIL) Is Never/Always On

Pinpoint Test O: The Malfunction Indicator Lamp (MIL) Is Never/Always On





Normal Operation
The MIL is controlled by the instrument cluster using data sent from the powertrain control module (PCM) over the high speed controller area network (HS-CAN).

Possible Causes
- PCM
- instrument cluster