RAM 3500 Truck 4WD V10-8.0L VIN W (1997)
Low Fuel Lamp/Indicator: Testing and Inspection
The diagnosis found here addresses an inoperative low fuel warning lamp condition. If the problem being diagnosed is related to lamp accuracy, be
certain to confirm the problem is the with the low fuel warning lamp and not with the fuel gauge circuit. See the diagnosis for the Fuel Gauge. If no fuel
gauge problem is found, the following procedure will help to identify a faulty low fuel warning lamp circuit.
1. Check that the fuel gauge is operating as designed. See the Fuel Gauge Calibration chart in Specifications. If OK, go to Step 2. If not OK, see Fuel
Gauge for diagnosis.
2. Disconnect and isolate the battery negative cable. Unplug the fuel pump module wire harness connector. Remove the instrument cluster bezel and
the instrument cluster. Replace the low fuel warning bulb with a known good unit. Connect the battery negative cable and test the lamp operation.
If OK, discard the faulty bulb. If not OK, replace the faulty low fuel warning printed circuit.
