Blower Fan Controller Inspection
WARNING: This page is about a different car, the 2016 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
- Remove the following parts:
- Passenger's side scuff plate (See SCUFF PLATE REMOVAL/INSTALLATION .)
- Passenger's side front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
- Passenger's side A-pillar trim (See A-PILLAR TRIM REMOVAL/INSTALLATION .)
- Passenger-side lower panel (See PASSENGER-SIDE LOWER PANEL REMOVAL/INSTALLATION .)
- Remove the screw.
- Remove the side duct.
- Remove the duct.
- Remove the auto leveling control module. (Without adaptive front lighting system (AFS)) (See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION .)
- Remove the adaptive front lighting system (AFS) control module. (With adaptive front lighting system (AFS)) (See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION .)
- Remove the blower fan controller. (See BLOWER FAN CONTROLLER REMOVAL/INSTALLATION .)
- Verify that the resistance between the terminals of the blower fan controller is as shown in the table.
- If there is any malfunction, replace the blower fan controller. (See BLOWER FAN CONTROLLER REMOVAL/INSTALLATION .)
- If the blower motor operation is not normal even though no malfunction can be verified, inspect the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] .) (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER] .)
NOTE:
- If a malfunction cannot be verified in the climate control unit, even if the climate control unit inspection is performed, it is possible that there is a malfunction in the blower fan controller internal circuit (electronic circuit). In this case, replace the blower fan controller.
| Tester lead | Resistance (kilohm) (approx. quantity) |
|||
|---|---|---|---|---|
| + | - | |||
| A | F | ∞ | ||
| F | A | ∞ | ||
| C | E | 7.5 | ||
| C | F | 660 | ||
| E | F | 666 | ||
|
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