Allison Transmission Neutral Safety Switch Location

Locate the transmission position sensor.

Allison transmission neutral safety switch location.

Remove the transmission position sensor switch step 1. Part 4 of 7. This switch tells the tcm the position of the shift leve. If so what problems was your transmission giving you before you replaced the switch.

The switch is located in two places on the vehicle. The nsbu switch transmits selector position information to the tcm. 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. This may be an internal electrical fault with the transmission neutral safety switch position range sensor that tells the computers what gear the transmission is in i have seen this fail on several models in the past before and had to replace it for issues like this here if this has not been checked tested at all this should be done to see if.

I was having problems with my transmission and one day i went to get in it and it said shift inhibited return to neutral to reset and after doing some rese. Go under the vehicle and locate the transmission position sensor switch. Transmission range or neutral switch explains the range switch testing or the neutral safety switch. Has anyone here had to have their park neutral safety switch replaced on their allison transmission.

The neutral safety switch will allow the engine to start with the transmission selector in park and neutral. Mechanical floor shifters have the neutral safety switch located on the of the transmission. I have found a tsb 02 07 30 011c that seems to cover my problems. Grab a creeper flashlight and tools for the job.

I am currently having some problems with mine including diagnostic codes p1711 and p1713.