Help with Speedometer adjustment.

My 07 KW and my 07 Freightliner have DIP switches. You set the switches using tire diameter and rear ratio.

 

I understand that. Somebody asked where the dip switches are located. I said I think they are on the backside of the speedometer. Is that where you found yours, tallmon?

 

Yes, sorry, forgot to say they are in the back! You definitely need the manual for the formula.

 

Or the pdf's in post 26.

 

Well, my '02 Freightliner FL112 does not have dip switches. I took apart the dash and they are not there. I stopped by the dealer and they said they can program the speedometer for 1 hour of shop time, $175! Seems a little much to me. Anybody know of a way to do it without having to pay them so much?

 

Find someone that has Detroit Diag Software 6.5 .... or a different detroit shop Should take literally 10 minutes to do.

 

Thanks tallmon! I'll visit the independent shop that works on my son's truck and see if he can do anything. I have a Cat C-12, does the Detroit Diag Software work with that?

 

Oh... didn't see the part about Cat. You'll need a Cat shop for that. They'll need the Cat diagnostic software.

 

Thanks!!