1. Remove the front seat. (See FRONT SEAT REMOVAL/INSTALLATION.)
2. Remove the seat cushion trim.
3. While inspecting for continuity between the terminals A and B of the connector, use a dryer to warm the thermostat of the seat warmer unit on seat cushion.

4. When the indication on the ohmmeter is no continuity, turn off the dryer, then use a thermometer to measure the temperature of the thermostat.

5. Verify that the temperature is approximately 29 °C {84 °F}.
6. Verify that there is continuity between the terminals of seat warmer units connector using an ohmmeter when temperature drops to approximately 20 °C {68 °F}.


Seat warmer switch inspection
Body shellMazda 6 Service Manual: Indicators
Manual shift mode indication
In manual shift mode, the “M” of the shift position indication in the instrument
panel illuminates.
Gear position indication
The numeral for the selected gear illuminates.
NOTE
If the gears cannot be shifted down when driving at higher speeds, the
gear ...
Mazda 6 Service Manual: Cruise control switch inspection
1. Disconnect the negative battery cable.
2. Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE
REMOVAL/INSTALLATION.)
3. Disconnect the cruise control switch connector.
4. Inspect for resistance and continuity between the cruise control switch
terminals using an ohmmeter. ...