Purpose, Function
When the engine coolant temperature is low, the thermostat blocks the engine coolant passage between the radiator and engine. As a result, because engine coolant cycles without passing through the radiator, warming is promoted.
Construction
The thermostat is installed to the rear part of the cylinder head.

The thermostat has the following parts:

Operation
1. When the engine coolant temperature decreases, the thermostat valve closes and engine coolant circulates without passing through the radiator.

2. When the engine coolant temperature is 80.5—83.5°C, the thermostat valve starts to open and the engine coolant passed through the radiator flows to the engine.

Thermostat Removal/Installation
EmissionsChild Restraint Precautions
Mazda strongly urges the use of child-restraint systems for children small enough
to use them.
You are required by law to use a child-restraint system for children in the U.S.
and Canada.
Check your local and state or provincial laws for specific requirements regarding
the safety of children ...
Air Mix Actuator Removal/Installation [Full Auto Air Conditioner]
Driver-side
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Side wall (driver-side).
b. Front heat duct (LH).
3. Disconnect the air mix actuator connector.
4. Remove the screw.
5. Remove the driver-side air mix actuator.
6. Install in the reverse order ...
M Position Switch [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The M position switch detects that the selector lever is in the M position.
The M position switch signal is sent to the TCM via CAN, and is used for
manual shift control and engine-transaxle integration control.
Construction
The M position switch is in ...