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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Control System [HVAC - Full Auto Air Conditioner) >> Climate Control Unit Inspection [Full-Auto Air Conditioner] >> Notes

Climate Control Unit Inspection [Full-Auto Air Conditioner]: Notes

  1. Remove the climate control unit with the connector connected. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] .)
  2. Switch the ignition to ON.
  3. Connect the negative (-) lead of the tester to body ground.
  4. By inserting the positive (+) lead of the tester into each climate control unit terminal, measure the voltage according to the terminal voltage table.
    • If there is any malfunction, inspect the parts under "Inspection item (s)".
      • If the parts under "Inspection item (s)" are found to be normal (except for terminal 2A, 2B), replace the climate control unit.
      • For terminal 2A, 2B, first try replacing the power MOS FET. If there is still any malfunction, replace the climate control unit.
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