Blower Fan Controller Inspection: Notes

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
2. Remove the following parts:
   1. Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
   2. Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION .)
   3. Passenger-side front heat duct (See FRONT HEAT DUCT REMOVAL/INSTALLATION .)
3. Remove the blower fan controller. (See BLOWER FAN CONTROLLER REMOVAL/INSTALLATION .)
4. Connect the blower fan controller connector.
5. Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
6. Switch the ignition ON (engine off or on).
7. Connect the negative (-) lead of the tester to body ground.
8. Insert the positive (+) lead of the tester into each blower fan controller terminal.
9. 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. (See BLOWER FAN CONTROLLER REMOVAL/INSTALLATION .)

Courtesy of MAZDA MOTORS CORP.