Malfunction Indicator Lamp (MIL)
The MIL (SERVICE ENGINE SOON) telltale is turned On by the cluster when it receives a command from the PCM (L61) engine or the BCM (L81) engine. This indicates to the operator of the vehicle that there is a possible problem with the engine/transaxle control system.The MIL (SERVICE ENGINE SOON) telltale will only be turned On for emission related faults.
During engine start-up, the MIL (SERVICE ENGINE SOON) telltale is turned On, for approximately 3 seconds, by the cluster for a visual system check.