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Home >> Oldsmobile >> 1984 >> Toronado 4.1 4 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing >> No Fuel Gauge Display

No Fuel Gauge Display

NOTE: The "E" and "F" and "FUEL" will not be lit if there is an open in the fuel tank sending unit circuit.
  1. Disconnect negative battery cable. Remove left front speaker cover. Unplug cluster harness connector. Using ohmmeter, check resistance between pins R (Pink wire) and T (Black wire). Reading should be 4-86 ohms.
  2. If resistances are good, replace cluster. If resistances are not to specification, unplug 6 wire connector near fuel tank.
  3. Connect an ohmmeter between the Pink wire in the male half of the connector and pin R of the cluster connector. Check for opens or shorts.
  4. If wiring is okay, lower fuel tank. Connect ohmmeter between the Pink wire (female connector) of the 6 wire connector near the fuel tank and the Pink wire at the sending unit.
  5. Check for opens or shorts. Ensure ground wire is attached to fuel tank. If wiring is good, replace sending unit.