Fuel Gauge: Description and Operation

GAS
The IPC displays the fuel level as determined by the PCM. The IPC receives a direct hardwire input from the PCM indicating the fuel level percent. The fuel gage defaults to empty if the IPC detects a malfunction in the fuel level circuit.

DIESEL
The IPC displays the fuel level as determined by the Fuel Sender Buffer Module. The IPC receives a direct hardwire input from the Fuel Sender Buffer Module indicating the fuel level percent. The fuel gauge defaults to empty if the IPC detects a malfunction in the fuel level circuit.