Ford Raptor Forum

Scanned with Snap On Scanner today. 2 codes P72B5 & P72B6. ICM speed sensor & ICM Tranns Gear Ratio Control. will a TCM tune or software update fix this issue?

Hello, so those are not valid DTCs; is it possibly they were P27B5 and P27B6? If so, those indicate Internal Control Module Transmission speed sensor performance. Those DTCs set when there is a mismatch between the speed sensor readings and the commanded gear ratio. The first thing to verify is the shift linkage; it’s located on the drivers side of the transmission.

If there are no shift linkage issues, the next step is to check for software updates. To do that you’ll need the Ford scan tool (IDS) or an aftermarket scan tool capable of module programming. Install any applicable updates, then perform the adaptive re-learn procedure.