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Blower Fan Controller Inspection: Notes

  1. Switch the ignition ON (engine off or on).
  2. Connect the negative (-) lead of the tester to body ground.
  3. Insert the positive (+) lead of the tester into each blower fan controller terminal.
  4. 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, replace the blower fan controller.
Fig 1: Blower Fan Controller Circuit Diagram - Full-Auto Air Conditioner
G10986636Courtesy of MAZDA MOTORS CORP.
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