Off-Vehicle Inspection

WARNING:

A hot transaxle and ATF can cause severe burns. Turn off the engine and wait until they are cool before replacing the ATF.

CAUTION:

Water or foreign material entering the connector can cause a poor connection or corrosion. Be sure not to allow water or foreign material on the connector when disconnecting.
Do not damage the terminals.

Disconnect the negative battery cable.
Remove the air cleaner component. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION ).
Remove the under cover.
Drain the ATF. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT .)
Remove the resonance chamber. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION ).
Remove the thermo valve. (See OIL COOLER REMOVAL/INSTALLATION .)
Remove the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
Remove the input/turbine speed sensor. (See INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION .)

Fig 1: Identifying Thermo Valve
Courtesy of MAZDA MOTORS CORP.
Connect the input/turbine speed sensor terminal 2 to the battery positive terminal, connect the battery negative terminal to input/turbine speed sensor terminal 1 through an ammeter set to a resistance of 100 ohm.

Fig 2: Input/Turbine Speed Sensor Test Connections
Courtesy of MAZDA MOTORS CORP.

Measure the current while waving a magnet back and forth over the top of the input/turbine speed sensor (less than 5 mm {0.197 in}).

If there is any malfunction, replace the input/turbine speed sensor. (See INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION .)

Fig 3: Waving Magnet Back And Forth Over Top Of Input/Turbine Speed Sensor
Courtesy of MAZDA MOTORS CORP.

INPUT/TURBINE SPEED SENSOR

Signal	Current (mA)
High	12.0-16.0
Low	4.0-8.0

Install the input/turbine speed sensor. (See INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION .)
Install the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
Install the thermo valve. (See OIL COOLER REMOVAL/INSTALLATION .)
Install the resonance chamber. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION ).
Add ATF to the specified level. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT .)
Install the under cover.
Install the air cleaner component. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION ).
Connect the negative battery cable.
Perform the mechanical system test. (See MECHANICAL SYSTEM TEST .)