Ford Raptor Forum

My truck got flooded about 1 year ago I replaced every module and everything works fine. I am just having issues with the 4x4 which I had to disconnect manually in order to keep the truck 4X2. Right now I have the following DTC´s B1081 and B11F0. I could not find any information about it. I hope could give me an idea of what might be wrong

Hello,

When you say it’s in 4H, are you referring to the 4x4 selector showing 4H on startup? Or are you referring to the IWEs being engaged? It’s normal strategy for the IWEs to stay engaged on startup and then disengage I once the truck is warmed up. That ensures adequate vacuum is available to keep them disengaged.

Thanks for your response.

The 4x4 selector stays on 2H, but the truck engages 4H by itself for approximately 7 minutes every time that I start the truck. Even when the engine has warmed up. I have tested for vacuum leaks and it seems that everything is alright. It holds vacuum. I have used Forscan and tried to control the IWS and it won't follow any command (I have also tried with a new IWS. Same behavior)