Speedometer not working?

Tiny
SHUFF66
  • MEMBER
  • 2007 NISSAN SENTRA
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 70,780 MILES
Replaced both sensors on transmission and still nothing. I have tried 3 different clusters but no luck. Any ideas?
Saturday, September 9th, 2023 AT 1:07 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

The speedometer function is based on different options on the vehicle. For example, if your vehicle has anti-lock brakes, the signal comes from the ABS module. If it has a CVT transmission, it comes from the transmission control module (TCM). If it doesn't have a CVT transmission or ABS, then it comes from the output speed sensor on the transmission. (see pic below)

So, I need to know which design you have.

Also, I need to know if you have scanned the can-bus. CAN stands for controller area network.

Here is a link showing how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Let me know.

take care,

Joe

See pics below.
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Sunday, September 10th, 2023 AT 8:21 PM

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