Caution
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Disconnect the VSS connector.
4. Remove the VSS.

5. Apply ATF to a new O-ring and install it on a new VSS.
6. Install the VSS.
Tightening torque
8-11 N·m {82-112 kgf·cm, 71-97 in·lbf}

7. Connect the VSS connector.
8. Install the under cover.
9. Connect the negative battery cable.
Vehicle speedometer sensor (vss) inspection
Solenoid valve inspectionMazda 6 Service Manual: Engine Exhaust (Carbon monoxide)
WARNING
Do not drive your vehicle if you smell exhaust gas inside the vehicle:
Engine exhaust gas is dangerous. This gas contains carbon monoxide (CO), which is
colorless, odorless, and poisonous. When inhaled, it can cause loss of consciousness
and death. If you smell exhaust gas inside the ...
Mazda 6 Service Manual: Transmitter battery inspection
Caution
Since the battery voltage does not drop fully if the button is
pushed for only 4 seconds or less, it can not be properly examined to see
whether it is good or bad. Always push the button for 5 seconds.
Note
A correct measurement can not be obtained if the battery
temperat ...