1. Disconnect the negative battery cable.
2. Remove the battery and battery tray.
3. Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
4. Disconnect the input/turbine speed sensor connector.

5. Remove the input/turbine speed sensor.
6. Apply ATF to a new O-ring and install it on a new input/turbine speed sensor.
7. Install the input/turbine speed sensor.
Tightening torque 8-11 N·m {82-112 kgf·cm, 71-97 in·lbf}
8. Connect the input/turbine speed sensor connector.
9. Install the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
10. Install the battery and battery tray.
11. Connect the negative battery cable.
 Input/turbine speed sensor inspection
Input/turbine speed sensor inspection Vehicle speedometer sensor (vss) inspection
Vehicle speedometer sensor (vss) inspectionMazda 6 Service Manual: Dtc clearing procedure
   1. Start the on-board diagnostic test mode.
2. First press the POWER button, then simultaneously press AUDIO CONT button 
for 2 seconds or more.
Caution
	Before clearing the DTCs, be sure to enter all of them displayed 
	in the on-board diagnostic test mode in the Audio Repair Order Form. ...
   
Mazda 6 Service Manual: Tire Pressure Monitoring System
   The Tire Pressure Monitoring System (TPMS) monitors the air pressure of all four 
tires. If the air pressure of one or more tires is too low, the system warns the 
driver by indicating the tire pressure monitoring system warning light in the instrument 
cluster and operating a beep sound. The sys ...