Allison 1000 NSBU Switch w/Connector Repair Kit, Duramax | 2001 - 2004 - Merchant Automotive - 10499

Comes with connector set. Color coded wires make for an easy install.




Comes with OE style connectors and approximately 12" of lead.






One of the most common problems with the Allison transmission is failure of the Neutral Safety Back Up switch.




Some of the symptoms of failure include but are not limited to: No start condition
Gear shift indicator on dash not following properly
Trans stuck in limp mode or fail safe
DTC's set indicating pressure switch codes
This switch easily installs with just common hand tools.




How does it work and why does it cause my transmission not to shift?






The vehicle is equipped with a column type shift selector. In addition to the column shifter, another component associated with the shift selector is the Nuetral Safety Back Up (NSBU) switch mounted on the selector shaft of the transmission. The NSBU switch transmits selector position information to the TCM. The NSBU switch mount