Front Windows stopped. BCU??
#1
Front Windows stopped. BCU??
I was putting the D2 away after a short drive on Sunday. After pulling into the garage, I pushed both front window switches to raise the windows. Passenger side went up all the way. Drivers stopped at 3-4 inches from the top. Won't go up, won't go down.
I can now hear a faint click from the BCU when pressing the switch. SO, I have an extra BCU and plugged it in, Truck wont start, no dash lights, nothing, zip, nada. Plugged the original one back in, everything works fine, still no windows.
I searched here and found an old post where the OP was instructed to replace the BCU, the ECM, and the dash cluster. Luckily I have the ECM from the donor truck as well. If I replace the BCM, and ECM to address the non-working windows, will the dash cluster be an issue?
BTW, no blown fuses and the windows had been working superb up to this point.
I can now hear a faint click from the BCU when pressing the switch. SO, I have an extra BCU and plugged it in, Truck wont start, no dash lights, nothing, zip, nada. Plugged the original one back in, everything works fine, still no windows.
I searched here and found an old post where the OP was instructed to replace the BCU, the ECM, and the dash cluster. Luckily I have the ECM from the donor truck as well. If I replace the BCM, and ECM to address the non-working windows, will the dash cluster be an issue?
BTW, no blown fuses and the windows had been working superb up to this point.
#2
#6
True! I wont even go that far yet swapping bcu/ecu etc without swapping the window controls to the passenger side.
#8
Yep, I definitely have some additional diagnosis to do. Thanks for all the input. BTW, anyone using an Autel MaxiDiag MD802?
The unit is advertised as capable of reading 4 systems but I can only get it to see live engine data and read engine codes. When I try to access any of the body systems, ABS,Air ABags, etc. the unit tells me the it is not communicating with the vehicle.
I've not been able to make heads or tails of the present software vs. an update. Again, this unit has options for a tons of systems after I select my specific year, make, and model, it just won't recognize the vehicle.
The unit is advertised as capable of reading 4 systems but I can only get it to see live engine data and read engine codes. When I try to access any of the body systems, ABS,Air ABags, etc. the unit tells me the it is not communicating with the vehicle.
I've not been able to make heads or tails of the present software vs. an update. Again, this unit has options for a tons of systems after I select my specific year, make, and model, it just won't recognize the vehicle.
#9
#10
I'm just wondering what really happened here. I hope you find the solution. From the beginning of your post your extra BCU did not work already. Did you at least tried if your window got power from your original BCU that worked? It just rare to hear working on a window and now the car wont start. Sooner or later you might need to get your truck reflashed, odometer wrong etc. I would just go back to square one and keep the old BCU for the time being.