Allison NSBU Switch 2004.5-2005
Allison NSBU Switch 2004.5-2005
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A common issue with the Allison transmission. Installs in about 30 minutes with basic tools.


Symptoms of a bad NSBU switch


- No Start condition.


- Sets DIC codes MAY suggest the NSBU as the cause: P0700, P0708, P0847, P0872, P0875, P1711 and P1713.


- PRNDL display may not show up or flash.


- Delayed or No Engagement of the transmission.


- SEL (service engine light) message that reads something like "shift range inhibited".


Installation Guide


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