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rpmdiag
rpmdiag, Tech and Instructor
Category: Chevy
Satisfied Customers: 7476
Experience:  Since 1975
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I have an 05 C5500 with a duramax 6.6 and an Allison 1000

Customer Question

I have an 05 C5500 with a duramax 6.6 and an Allison 1000 trans. I keep getting code P1295 can I get some info
Submitted: 5 months ago.
Category: Chevy
Expert:  rpmdiag replied 5 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 5 months ago.

Bank 1 low side shorts means to check all the wiring and connections first for that bank.

Thanks, Ron

Customer: replied 5 months ago.
I've got the complete harness open and I don't see anything
Expert:  rpmdiag replied 5 months ago.

If the wiring is all good including the grounds, then you can have a computer issue.

Attach your scan tool and try doing some bidirectional tests on all the modules to see what your responses are.

Thanks again and please remember to rate me 5 stars now and keep
this link in case you need me again later on.
I don’t get credit for assisting you until you rate me
Ron

Customer: replied 5 months ago.
I can't find a wiring diagram. Do you have one? I have several of these trucks and took a ficm off another Truck and it didn't fix it. BTW I own a repair shop so if you have any questions it won't be over my head...lol. I agree with you it has to be a wiring problem, I have to be overlooking something.
Expert:  rpmdiag replied 5 months ago.

My diagrams don't cover that large of a truck. Have you tried Identifix?

They would have that for you.

Thanks again, Ron

Expert:  rpmdiag replied 5 months ago.

If you are satisfied with my answer, I would greatly appreciate a 5
star rating now and I will still assist you after you have rated me
too if another question pops up. I don’t get credit for helping you
until you rate me.
Thanks again, Ron