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1976-77 Rotary Engine Equipped Models

  1. Locate heat hazard sensor. On passenger cars, sensor is located beneath mat, in floor of trunk. On Pickup, heat sensor is located in floor of passenger compartment.
  2. Remove sensor and wrap sensor and thermometer in aluminum foil. Place sensor in container of oil. See Fig 1. Connect test light and power source to sensor. Slowly heat oil. Test light should come on when temperature in foil reaches 230-260°F (100-130°C). Replace sensor if defective.
Fig 1: Heat Sensor Test
G09310033Courtesy of MAZDA MOTORS CORP.
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