Transmission Electrical Problem B500

[luvrbus]

My B500 blows the fuse to the shift pad,I removed the pad from the circuit and it still blows the fuse.I get no codes with the ProLink or the flashing codes only message is "Retarder Engaged" on the dash.Any idea where to start looking,relays are new   thanks  

[blue_goose]

Do you have  a wtec 2 or 3 ?
Jack

[luvrbus]

 Jack,I pretty sure it was updated to lll according to the reader when the outfit in FL replaced the ECU and B500 in  2011 or about that time frame,the friggn Allison manuals are hard to figure out for me on a B500  

[Dave5Cs]

Clifford you know I know nothing about these Trans but is there a way to manually disengage the retarder and then try it. Maybe that is failing the system and blowing the fuse? Ok tell me no thats no it now, LOL Just trying for ya..
Dave

[luvrbus]

LOL and Scott thinks he has problems with gauges not working 

[bigred]

Does anyone ever just get in a bus and go??? I swear !! I am to old for all this drama!!!!

[luvrbus]

Does anyone ever just get in a bus and go??? I swear !! I am to old for all this drama!!!!

LOL I did for 15 years when I owned a Eagle with a mechanical 8v92 and 740 Allison transmission

[John316]

Now I remember why we got rid of it I no longer have to worry about things, if the bus won't start...

Sorry about the troubles. Have you called MCI tech support? They are usually really helpful.

[luvrbus]

After 3 days of chasing wires I know what the MCI letters really stands for

       "May Cause Insanity" 

It could worse John if you and Steve had let the maintenance go unattended   

[muldoonman]

Does anyone ever just get in a bus and go??? I swear !! I am to old for all this drama!!!!

I did for a while and then gotcha.

Hope you get figured out, Cliff. Is a Allison Shop  visit in your near future. There ain't no chance for us Mullets when it stumps the Smart Guys.

[B_K]

Have you tried picking Don's brain on it Clifford?
  BK 

[Scott & Heather]

Cliff this may not help, but when my retarder got retarded, I disabled it at the air solenoid.  But we're talking different trannys


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[Rick 74 MC-8]

Just jump the fuse and watch where the smoke comes out. That's where the problem is. Lol

[Dave5Cs]

Fuses are so over rated aren't they?

[luvrbus]

Fuses are so over rated aren't they?

So are the shift pads and B500 ECU control units plus being expensive