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

PINPOINT TEST L: THE MALFUNCTION INDICATOR LAMP (MIL) IS NEVER/ALWAYS ON

L1-L5:

Normal Operation
The instrument cluster receives the MIL status from the powertrain control module (PCM) over the high speed controller area network (CAN) communication bus. When a fault condition exists in the PCM, a DTC is set in the PCM and a message is sent to the instrument cluster to illuminate the MIL warning indicator.

DTC U0294 - sets if the PCM data is missing for more than 5 seconds or if invalid data is received and the instrument cluster turns on the MIL.

Possible Causes
- PCM
- Instrument cluster