I have a 2007 Freightliner Century having a similar issue. (Smartshift)
Hand computer code = Code SPN 161 Transmission input Shaft speed. / SPN0161 Occurrence count 5 / FMI=5 - Current Below Normal or Open Circuit
(I believe it's the open circuit because the dash code says "Trans In Shaft SPEED OPEN 130 161 05 N/F*” (*flashing between both)
I recently had a friend install an inverter. Shortly after my check trans light began to flash. Thought maybe I needed new Batteries because I just bought the truck a few months prior, so I bought 4 new.
It worked for a quick sec then Flashing check trans light and codes again, also heard a grinding sound as I was stopping to check, I stopped almost immediately after hearing the sound. Thought it might be out of trans fluid but when checked it wasn't the true.
Currently: won't shift into gear anymore.
I tried disconnecting from the battery. When I was stranded out of state I disconnected while I was sleeping, woke and it got me back home only to stop shifting into gear 3 blocks away from home.
Now parked down the way and can't get it out of gear. Tried the battery trick again for a few days this time. No go. Still flashing F/N and throwing codes above.
PLEASE HELP - My automatic transmission truck wont go into gear
Discussion in 'Peterbilt Forum' started by sprechnd, Apr 5, 2014.
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