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Fuel Gauge & Sending Unit

  1. Turn ignition on. If temperature gauge operates, go to next step. If temperature gauge does not operate, check fuse. If fuse is okay, measure voltage at instrument cluster power supply terminals on back of instrument cluster. If 12 volts are not present, repair wiring between fuse and instrument cluster. If 12 volts are present, replace fuel gauge.
  2. If temperature gauge operates as in step 1), disconnect fuel tank sending unit connector. Connect a 7-ohm resistor between ground and Black/Yellow wire terminal of fuel tank sending unit connector. If fuel gauge reads FULL, replace fuel tank sending unit.
  3. If fuel tank does not read FULL, measure voltage at Black/Yellow wire terminal of fuel tank sending unit connector. If 12 volts are present, replace fuel gauge. If 12 volts are not present, measure voltage at Black/Yellow wire of 12-pin connector on back of instrument cluster.
  4. If 12 volts are present, repair wiring between instrument cluster and fuel tank sending unit. If 12 volts are not present, replace fuel gauge.
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