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Fuel Gauge Test: Protege

  1. Remove rear seat cushion. Remove fuel pump cover. Disconnect fuel gauge sending unit connector. Turn ignition on and wait 4 minutes. Verify fuel gauge needle indicates empty. Ground Gray wire terminal of fuel gauge sending unit connector (instrument cluster side of harness connector). Wait 4 minutes. Verify fuel gauge needle indicates full. If fuel gauge needle does not operate as specified, go to next step.
  2. Remove instrument cluster. Loosen screws for terminals "A", "B" and "C" on rear of instrument cluster. See Fig 3 . DO NOT loosen screws too much or resistance cannot be measured properly. Using ohmmeter, measure resistance between fuel gauge terminals on rear of instrument cluster as specified. If resistance is not as specified, replace fuel gauge.
Fig 1: Testing Fuel Gauge (Millenia)
G97H04493Courtesy of MAZDA MOTORS CORP.
Fig 2: Testing Fuel Gauge (MPV)
G97F04492Courtesy of MAZDA MOTORS CORP.
Fig 3: Testing Fuel Gauge (Protege)
G97C04495Courtesy of MAZDA MOTORS CORP.
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