Shift solenoid B control

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

TCM terminal: 2S (+)-2U (-)
Oscilloscope setting: 5 V/DIV (Y) 10 ms/DIV (X)
Measuring condition: P, N position, Idle

Fig 1: Identifying Oscilloscope (Shift Solenoid B Control)
Courtesy of MAZDA MOTORS CORP.