Mazda CX-5 Service & Repair Manual: Resistor [Manual Air Conditioner]
Purpose
-
The resistor controls the blower motor rotation speed.
Function
-
The resistor controls the supply voltage to the blower motor according to the fan switch operation, and adjusts the fan rotation speed (airflow volume).
Construction
-
The resistor is installed to the A/C unit.
-
A thin, card-type resistor has been adopted for weight reduction.
Operation
1. When the fan switch speed is set at 1, the resistor internal resistance increases and the blower motor applied voltage decreases. Therefore, the blower motor rotation speed decreases.
2. The resistor internal resistance decreases as the voltage applied to the blower motor by the fan switch increases in speed to 2, 3, and 4. Therefore, the blower motor rotation speed increases.
Fail-safe
-
Function not equipped.
Resistor Removal/Installation [Manual Air Conditioner]
NOTE:
When removing the resistor, perform the procedure in the posture shown in
the figure.
1. Disconnect the negative battery cable..
2. Remove the dashboard under cover..
...
Solar Radiation Sensor Inspection [Full Auto Air Conditioner]
1. Shine a fluorescent light or expose the solar radiation sensor to natural
sunlight.
2. Connect the positive (+) lead to terminals B, C and negative (-) lead to terminal
A of the solar radiati ...
Other materials:
Refrigerant Pressure Sensor [Full Auto Air Conditioner]
Purpose
The refrigerant pressure sensor detects the refrigerant pressure in the refrigerant
cycle.
Function
The refrigerant pressure sensor converts the detected refrigerant pressure
to an electric signal and sends it to the PCM.
Construction
The refriger ...
Audio Amplifier Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Front scuff plate (RH).
b. Front side trim (RH).
3. Remove the bolts.
4. Lift up the audio amplifier in the direction of the arrow (1) shown in the
figure, pull it in the direction of the arrow (2) shown in ...
Vacuum Pump Removal/Installation
1. Remove the plug hole plate..
2. Remove the battery..
3. Set the PCM wiring harness out of the way.
4. Disconnect the vacuum hose from the vacuum pump..
5. Remove in the order shown in the table.
6. Install in the reverse order of removal.
1
Vacuum hose
...
