Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2022 >> 3 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Control System - Auto A/C >> Climate Control Unit Inspection [Full-Auto Air Conditioner] >> Notes

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

  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)] .)
  2. Remove the climate control unit with the connector connected. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)] .)
  3. Connect the negative battery terminal.
  4. Switch the ignition ON (engine off or on).
  5. Connect the negative (-) lead of the tester to body ground.
  6. Insert the positive (+) lead of the tester into each climate control unit terminal and measure the voltage according to the terminal voltage table.
    • If there is any malfunction, inspect the parts under "Inspection item(s)".