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Home >> Subaru >> 1981 >> GLF Automatic Trans >> Repair and Diagnosis (Single Page) >> Electrical >> Switches, Gauges & Instrument Panels - SUBARU >> Testing >> Fuel Gauge

Fuel Gauge

  1. Turn ignition off. If gauge does not drop below "E", replace it. Turn ignition on. Check temperature gauge operation. If temperature gauge does not work, check fuel and wiring to terminal 21 on the back of instrument cluster.
  2. Unplug fuel tank sender. Connect a 7 ohm resistor between sending unit wire and ground. Fuel gauge should read "F". If so, replace fuel tank sending unit. If not, check for 7 volts at sending unit wire.
  3. If voltage is present at sending unit wire, replace fuel gauge. If not, check for 7 volts at terminal 9 (Black/Yellow wire) at back of instrument cluster. If voltage is present, repair wiring to fuel sending unit. If no voltage, replace temperature gauge.
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