Tachometer Problem Lx470

[toyotaaddict83]

Hello

Driving the lx470 today doing some usual errands, but I did not have a tachometer.
All the other gauges and lights were working however they were a little lazy when I first started the motor. Could the battery need replacing? I doubt that would help, cause the truck starts find (doesn't struggle). Is there a sensor that could be loose or unconnected? I dont know, those were my ideas. What you guys think?

 

[Actualeyes]

If the car is running the battery is unlikely to be the issue but possible.

There are a couple of threads with the same issue, but no clear solution:

https://www.google.com.au/search?q=...69i60j69i62l3.3754j0&sourceid=chrome&ie=UTF-8