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Ambient Temperature Sensor Inspection (Auto A/C)

  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  2. Remove the front bumper. (See FRONT BUMPER REMOVAL .) (See FRONT BUMPER INSTALLATION .)
  3. Remove the ambient temperature sensor. (See AMBIENT TEMPERATURE SENSOR REMOVAL/INSTALLATION (AUTO A/C) .)
  4. Measure the temperature around the ambient temperature sensor and measure the resistance between the ambient temperature sensor terminals A and B.
    Fig 1: Ambient Temperature Sensor Connector Terminals
    G11276289Courtesy of MAZDA MOTORS CORP.
    Fig 2: Ambient Temperature Sensor Characteristics Graph
    G09075846Courtesy of MAZDA MOTORS CORP.
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