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1975-76 1600cc Piston Engine Equipped Models

  1. Locate heat hazard sensor. On Sedan and Coupe, sensor is located beneath mat, in floor of trunk. On Station Wagons, sensor is located under rear seat.
  2. Remove sensor and wrap sensor and thermometer in aluminum foil. Place sensor in container of oil. See Figure. Connect test light and power source to sensor. Slowly heat oil. Test light should come on when temperature in foil reaches 203-221°F (95-105°C). Replace sensor if defective.
    NOTE: Do not allow oil temperature to reach more than 392°F (200°C).
    Fig 1: Heat Hazard System Test
    G09310032Courtesy of MAZDA MOTORS CORP.
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