Quote Originally Posted by Dmitrikr View Post
on top of transfer case is big 12 pin connector then wire loom runs down to pass.side. tod controller is under passenger seat.

I was using trooper repair manual to fix issues with mine. on p590 is wiring diagram on p596-pin layout of that big 12 pin connector on top of transfer case and p610- diagnostic flow for codes24 and 14. in my case was rear speed sensor wire pin rotten.
I replaced both of these sensors yesterday, and they did not fix the codes my TOD is putting out. And according to 3 other people who have been down this road, those two (EXPENSIVE) sensors do not fix this problem.

It looks like it is illustrated here:

http://catalogs.marketparts.ru/isuzu...fHA1MD09MDI%3D

I think it is part # 8-96014-422-0, A/T CONT REVOLUTION SENSOR. I will be calling Merlin to check price on this tomorrow. Probably another pricey part but likely a non-Isuzu part can be used, since we are talking about the GM 4L30E here.

Bart