Cobalt L4-2.0L SC VIN P (2005)
Fuel Gauge: Description and Operation
FUEL GAGE
The instrument panel cluster (IPC) displays the fuel level as determined by the powertrain control module (PCM)/engine control module (ECM). The
IPC receives a GMLAN message from the body control module (BCM) indicating the fuel level volume. The fuel gage defaults to empty (E) if:
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The PCM/ECM detects a malfunction in the fuel level sensor circuit.
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The IPC detects a loss of GMLAN communications with the BCM.
When the fuel level is less than a certain low percentage, LOW FUEL message displays in the driver information center (DIC).
