Fuel System

LOW FUEL
The IPC illuminates the low fuel indicator when the following occurs:
^ The IPC determines that the fuel level is less than a pre-determined value. The IPC receives a class 2 message from the PCM indicating the fuel level volume. The IPC sends a class 2 message to the Body Control Module (BCM) indicating that the low fuel indicator is illuminated. The BCM sends a class 2 message to the radio in order to activate an audible warning.
^ The PCM detects a malfunction in the fuel level sensor circuit. The IPC sends a class 2 message to the BCM indicating that the low fuel indicator is illuminated. The BCM sends a class 2 message to the radio in order to activate an audible warning.
^ The IPC detects a loss of class 2 communications with the PCM.