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Discussion Starter #1
Hello,
I have a 2013 AWD auto sx4 with about 115k miles. I pulled out of a gas station in manual mode, when shifting from 3rd to 4th the car acted like it went into neutral. After getting the car off the road I could not get it to move in any gear. After getting it towed home I ran a code scanner and got a U0101 and P0722 code. Any ideas, i'm a good ways from a Suzuki dealer.

Thanks!
 

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It appears the code U0101 means the transmission control module has lost communication, but is also showing P0722 as there is no output speed signal. This communication is done via Can-Bus which is beyond my help level I'm afraid.
Welcome to the forum.
 

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Thanks, this forum has been great help with previous Suzuki Aerio I owned. I was hoping it was just an easy change out of TCM or sensor vs. a whole transmission.
 

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TCM has gone to sleep and not comm with PCM, check power and ground to TCM..

... Philip
 

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Discussion Starter #5
That's what I was hoping. Bought the one day version service manual and did some troubleshooting. Tested all power to relay and TCM, had proper power and good grounds according to service manual.
 
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