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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Manual A/C-Heater Systems - HVAC) >> Component Tests >> THERMOSENSOR Inspection >> To Inspect On/off Points Of The Thermosensor

To Inspect On/off Points Of The Thermosensor

WARNING: This page is about a different car, the 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable.
  2. Remove the thermosensor.
  3. Connect the thermosensor connector to the wiring harness connector.
  4. Connect the negative battery cable.
  5. Turn the ignition switch to ON position.
  6. Turn the A/C switch on.
  7. Turn the front fan switch on.
  8. Immerse the sensor part of thermosensor in a container of ice water.
  9. Connect the positive (+) and negative (-) probes of the voltmeter to terminal A and terminal C of the thermosensor respectively.
  10. Inspect the voltage as shown in illustrations below.
    • If not as specified, replace the thermosensor.
Fig 1: Identifying Thermosensor On/Off Points
G01197688Courtesy of MAZDA MOTORS CORP.
Fig 2: Testing Thermosensor On/Off Points
G01197689Courtesy of MAZDA MOTORS CORP.
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