Transmitter Battery
WARNING: This page is about a different car, the 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Battery temperature must have been greater than 64°F (18°C) for more than 30 minutes before testing.
Push transmitter button once a second for 5 seconds. Remove battery. See Fig 1 . Wait one minute before measuring battery voltage. Voltage should be more than 2.7 volts. If voltage is not as specified, replace battery.