Allison 6sp: Tap shift wiring

[hepperj27]

I have a wrecked 2006 LBZ/Allison that I have put a cab on from a 2004 LB7/ZF6 since putting everything together the tap shifter or tow/haul will not come on. I have the tap shift wired(purple wire from I/P harness to C100 connector). Since the harness is from a pickup with the ZF6 I was wondering if the wires may not be there for the tow/haul i assumed they wouldn't be there for the tap shifter being as that was not an option in 2004. Any help to get this problem fixed would be appreciated. Thank you.

 

[JoshH]

You probably need to move the dash harness over from the wrecked truck to the 04 cab.

 

[hepperj27]

I figured it out. I needed to move the power wire over for the tap shifter and tow haul. All data lists the pins that they are hooked to as unused this is what had me confused, that fixed the tap shifter problem but the tow haul would still not work. After some research I decided to switch over body control modules and that fixed my problem.