HELP! Water Pump for DD15 engine replacement options needed

Thank you

 

Have a question. I had a mechanical water pump installed instead of the variable speed one since none available. Went in the system disabled the water pump speed control and i get this code yet

 

I installed a mechanical water pump in place of the variable speed one that u cant get. Disabled the water pump speed sensor in the computer and it still gives me this code

 

Anyone have any idea why this ain’t working when done the steps suggested on here? Trucks down driver sitting

 

I wish I had an answer for you, this is why I was hesitant to do this. Maybe @Varga can shed some light on this.

 

Id be appreciative if someone could help me. Trucks been down since last Thursday

 

Sorry for the late response. Driving night sleeping when daylight. Not much time for fallowing the forums.R you positive the codes come up after changing the multiplexer?

 

Yes and we had to take and hook up the sensor outta the old pump too otherwise we had more codes come up. Went through step by step disabled water pump speed.

 

What year and make and model? Ghg14 or Ghg17? Interesting situation. I like to investigate Thanks. My programer guy want to know. We do not have that problem previously. The solution is there just need more info. Thanks.

 

Ghg14