Mazda RX-8 Workshop Manual page 2272

2. Verify the ATF temperature using the PID/data monitor "TFT".
3. Warm up the automatic transmission until the ATF temperature is 39—54 °C {103—129
°F}.
Using the AT warning light
1. Short the TFT check connector terminal A and B of the TCM.
2. Perform the following operations to activate the control for the oil level adjustment.
Continue the shifting operation from N to D, D to N within 1.5 s until the AT
warning light illuminates.
NOTE:
When adjusting the ATF level, refer to the following chart and verify the
specified ATF temperature (39—54 °C {103—129 °F}) .
AT warning light illumination chart for ATF level adjustment
ATF condition Time chart