Transmission Replaced, vehicle not shifting gear, code: P1722-vehicle speed signal?

MALLYBOY

MEMBER
2010 NISSAN X-TRAIL
2.5L
4 CYL
2WD
AUTOMATIC
296,166 MILES

This vehicle started slow movement when engage gear and depressed the throttle pedal, later the transmission was replaced but problem still exist, then when I came to diagnose it, there was abnormal communication with TCM, I tried it many times and it fails to communicate. Please I need TC.

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5 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,949 POSTS

Yep, first check all fuses to make sure the modules have power, here is a guide to help and I have included the TCM wiring diagrams below. The TCM gets it power from fuse # 38 form the under-hood fuse panel. I do see more power for the TCM is from the IPDM which can go out causing the other communication errors as well FYI.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-wiring

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Monday, October 2nd, 2023 AT 11:34 AM

MALLYBOY

MEMBER
300 POSTS

I have checked for power at TCM and there's power I.E. I used test lamp to check for Battery Voltage and it illuminates brightly, I check ignition voltage with ignition on and the test lamp illuminates.
So, I also need the Communication Diagram to trace the communication between ECM and TCM.
Thanks

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Tuesday, October 3rd, 2023 AT 12:15 AM

KEN L