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Home >> Mazda >> 2007 >> CX-7 Touring, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Control System (HVAC) >> Climate Control Unit Inspection [Full-Auto Air Conditioner] >> Notes

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

  1. Remove the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] .)
  2. Install the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION ).
  3. Connect the climate control unit connector.
  4. Connect the negative (-) lead of the tester to body ground.
  5. Turn the ignition switch to the ON position.
  6. 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 T), replace the climate control unit.
      • For terminal T, first try replacing the power MOS FET. If there is still any malfunction, replace the climate control unit.