Mazda 3 Service Manual: Variable Tumble Shutter Valve Actuator Inspection [Mzr 2.0, Mzr 2.5]
Operation Inspection
1. Remove the air hose..
2. Disconnect the vacuum hose from the variable tumble shutter valve actuator.
3. Connect a vacuum pump to the variable tumble shutter valve actuator.
NOTE:
-
Covered with a hood, the rod of the variable tumble shutter valve actuator cannot be seen from above. Use a mirror from under it to check the operation of the variable tumble shutter valve.
4. Check if the rod operates correctly as stated in the table when a gradual negative pressure is applied to the variable tumble shutter valve actuator.
|
Vacuum kPa {mmHg, inHg} |
Rod movement |
|
Below –2.7 {–20, –0.8} |
No operate |
|
Above –33.4 {–251, –9.86} |
Fully pulled |
-
When it is not possible to confirm it, replace the intake manifold..
-
When the variable tumble shutter valve actuator cannot be activated even though the operation of the rod can be confirmed, check for any incorrect connections or breakage of the vacuum hose.
Variable Swirl Solenoid Valve Inspection [Mzr 2.3 Disi Turbo]
Airflow Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the variable swirl solenoid valve..
4. Inspect the airflow between the ports under the foll ...
Variable Tumble Solenoid Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the variable tumble solenoid valve..
4. Inspect airflow between the ports under the followi ...
Other materials:
Clock Spring Inspection [Standard Deployment Control System]
1. Disconnect the negative battery cable..
2. Remove the driver–side air bag module..
3. Remove the steering wheel..
4. Remove the column cover.
5. Remove the clock spring..
6. Verify that the continuity is as indicated in the table.
If not as indicated in the table, replace the cl ...
Mazda Radar Cruise Control
(MRCC)
The Mazda Radar Cruise Control (MRCC) system is designed to maintain headway
control *1
according to the vehicle speed using a radar sensor (front) to detect the
distance to a vehicle
ahead, and by presetting the vehicle speed between 30 km/h (19 mph) and 145 km/h
(90
mph), the driver is fr ...
Steering Wheel
WARNING
Never adjust the steering wheel while
the vehicle is moving:
Adjusting the steering wheel while
the vehicle is moving is dangerous.
Moving it can very easily cause the
driver to abruptly turn to the left or
right. This can lead to loss of control or
an accident ...
