Allison 5sp: ? About nsbu switch

[05chevy]

03 and tow haul and over drive button does not work. Dies the nsbu switch have anything to do with that? Thanks

 

[dmax711]

i had the same problem, the wire that goes to the button was broke in half rite at the shift lever.

 

[Tony Burkhard]

The wire that goes to the button is broke in half rite at the shift lever.

X2

 

[05chevy]

Ok thanks