Transmission Temperature
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
The IPC receives the transmission fluid temperature message from the GWM over the HS-CAN3. The GWM receives the transmission fluid temperature message from the PCM (gas engine) or TCM (diesel engine) over the HS-CAN1. The PCM (gas engine) or TCM (diesel engine) filters the transmission fluid temperature signal to remove fluctuations that could affect the stability of the transmission temperature gauge indication.