Cherokee 4WD L6-4.0L VIN S (1998)
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 Instrument Panel,
Gauges and Warning Indicators/Fuel Gauge. If no fuel gauge problem is found, refer to the Instrument Panel, Gauges and Warning Indicators/Instrument
Panel/Instrument Cluster diagnosis.
WARNING: ON VEHICLES EQUIPPED WITH AIR-BAGS, REFER TO AIR BAGS AND SEAT BELTS/AIR BAGS BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE.
FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
If the low fuel warning lamp fails to light when the fuel level is below about 1/8 of a full tank as indicated by the fuel gauge, replace the low fuel warning
lamp bulb with a known good unit. If the indicator lamp still fails to operate, diagnosis of the fuel gauge sending unit and circuit, the Powertrain Control
Module (PCM), and the Chrysler Collision Detection (CCD) data bus should be performed with a DRB scan tool. For diagnosis of the low fuel warning
lamp and the instrument cluster circuitry, see Instrument Panel, Gauges and Warning Indicators/Instrument Panel.
