Mazda 3 Service Manual: Cooling

Vehicle Speed Sensor (VSS) Removal/Installation [FS5 A EL]

CAUTION: If foreign materials are stuck to the sensor, disturbance by magnetic flux can cause sensor output to be abnormal and thereby negatively affect control. Make sure that foreign m ...

Coolant Reserve Tank Removal/Installation [Mzr 2.0, Mzr 2.5]

WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may ...

Other materials:

Airflow Mode Actuator Inspection [Full Auto Air Conditioner]
CAUTION: If the lever position exceeds the operation range shown in the figure, the circuit in the actuator could be damaged. Always perform an actuator operation inspection with the lever movement within the range shown in the figure. 1. Connect battery positive voltage to airfl ...

Barometric Pressure (Baro) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Voltage Inspection NOTE: Because the BARO sensor is integrated in the PCM, replacing the BARO sensor includes replacement of the PCM. 1. Connect the M-MDS to the DLC–2. 2. Switch the ignition to ON. 3. Verify that the BARO sensor output voltage (PID: BARO) is within the spe ...

Adjusting the Vents
Directing airflow To adjust the direction of airflow, move the adjustment knob. NOTE When using the air conditioner under humid ambient temperature conditions, the system may blow fog from the vents. This is not a sign of trouble but a result of humid air being suddenly cooled. The ...