1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Remove the intake manifold..
4. Disconnect the KS connector.
5. Remove the KS..

6. Install in the reverse order of removal.
KS Installation Note
Verify that there is no foreign matter caught between the KS unit and cylinder block.
The direction of the KS connector is within the 90-degree angle range shown in the figure.

Knock Sensor (Ks) Inspection
Knock Sensor (Ks)Air Bag System Service Warnings [Two Step Deployment Control System]
Air Bag Module Inspection
Inspecting an air bag module using a tester can operate (deploy) the air
bag module, which may cause serious injury. Do not use a tester to inspect an
air bag module. Always use the on-board diagnostic function to diagnose the
air bag module for malfunctions ...
Service Publications
Service Publications
Factory-authorized Mazda service publications are available for owners who wish
to do some of their own maintenance and repair.
When requesting any of our publications through an Authorized Mazda Dealer, refer
to the chart below.
If they do not have what you need in stock ...
Refrigerant Pressure Sensor Removal/Installation [Full Auto Air Conditioner]
1. Disconnect the negative battery cable..
2. Discharge the refrigerant..
3. Disconnect the refrigerant pressure sensor connector.
CAUTION:
If moisture or foreign material enters the refrigeration cycle, cooling ability
will be lowered and abnormal noise will occur. Always immediate ...