Normal Operation

The failsafe cooling status is sent from the powertrain control module (PCM) to the instrument cluster over the high speed controller area network (CAN) communication bus. During an engine overheat condition, the PCM enters into the failsafe mode and sends a signal to the instrument cluster to turn on the failsafe cooling warning indicator. During a failsafe mode the instrument cluster also pegs the temperature gauge pointer at hot (H), or the highest position on the gauge to alert the driver of the overheat condition.

DTC U0294 - sets if the failsafe cooling status message is missing for more than 5 seconds and the instrument cluster turns off the failsafe warning indicator.