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Temperature Gauge Test: Protege

  1. Disconnect temperature gauge sending unit connector. Turn ignition on. Verify temperature gauge needle indicates cold. Ground Black/Orange wire terminal of temperature gauge sending unit connector (instrument cluster side of harness connector). Verify temperature gauge needle indicates hot. If temperature 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 temperature gauge terminals on rear of instrument cluster as specified. If resistance is not as specified, replace temperature gauge.
Fig 1: Testing Temperature Gauge (Millenia)
G97I04498Courtesy of MAZDA MOTORS CORP.
Fig 2: Testing Temperature Gauge (MPV)
G97A04499Courtesy of MAZDA MOTORS CORP.
Fig 3: Testing Temperature Gauge (Protege)
G97I11641Courtesy of MAZDA MOTORS CORP.
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