VSS Wire

Carolina06SierraZ71 · November 13, 2006

06 GMC Sierra. Do I have to install the VSS wire in order for the Navigation System to work correctly, or is it ok to leave it off? I have a Dlephi TNR800.

Thanks

deadringer · November 13, 2006

You don't have to have the VSS wire... but the nav will be really jumpy on updates without.

I thought that all trucks 2004+ had the VSS wire standard... are you sure yours is missing?

Carolina06SierraZ71 · November 13, 2006

You don't have to have the VSS wire... but the nav will be really jumpy on updates without.

I thought that all trucks 2004+ had the VSS wire standard... are you sure yours is missing?

<{POST_SNAPBACK}>

No, I am not sure whether it's there or not. Are you saying all 06's have the DSS wire there, so I do not need to install jumper? (install directions said not necessary as well) Problem is, I just installed the Nav today and tested it out, seemed slow & erratic. Do you have to set it up or calibrate it?

I am not that familiar with the Delphi TNR800 as I have owned a Navman ICN635 in use in my 02 Silverado since new, but wanted the factory look for the new ride. Not happy with it this far, maybe I am missing something. Any suggestions or assistance would be appreciated.

Thanks

go0ky486 · November 18, 2006

yeah supposedly the wire should be there. i installed one in my dads 05 3500 dually. the wire was in the smaller of the two harnesses in position E just like the instructions said. basically without the vss wire your nav shouldnt be giving you turn by turn guidance when in route mode. i cant remember if i had to calibrate it. but i do know that it was acting like a b*!@# when i first tested it. it kept thinking i was in maine, but im in california. it was weird. but afterwards it all seemed fine. yeah my dad was after the factory look too. i have an eclipse unit in my silverado and it works awesome for me. hope this helped!