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Home >> Mazda >> 2003 >> MX-5 Miata Base, Automatic >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Control System (HVAC) >> THERMOSWITCH Inspection >> To Determine if The Switch is Functioning

To Determine if The Switch is Functioning

  1. Remove the glove compartment.
  2. Start the engine.
  3. Turn the A/C switch on.
  4. Turn the fan switch on.
  5. Connect the positive (+) and negative (-) probes of the voltmeter to terminal A and terminal B of the thermoswitch respectively. (The wiring harness connector must be connected to the thermoswitch connector.)
  6. Inspect the voltage as shown below.
    • If not as specified, inspect on/off points of the thermoswitch.
    Fig 1: Inspecting Thermoswitch Operation (1 Of 2)
    G01907819Courtesy of MAZDA MOTORS CORP.
    Fig 2: Inspecting Thermoswitch Operation (2 Of 2)
    G01907820Courtesy of MAZDA MOTORS CORP.
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