911 carrera 1985 faulty odometer

[mojarra2929]

Hello

I just realized that my odometer stopped working (partial and total millage counters). My speedo keeps working.

I know that there are many threads about this issue but IŽd need to know, before trying to take the gauge apart to check the internal gears, if my problem could be a faulty tranny speed sensor.

Do the speedo and odometer use the same signal from the sensor? I think there are 3 or 4 wires connected in the back of the gauge.

Thanks in advanced.

Miguel
Porsche 911 Carrera 1985

[Keithg]

Plastic gears go bad after 30+ years. EZ to remove and send out-

[GH85Carrera]

Same signal for the speed and odometer.

[porschedude996]

I’ve great work from North Hollywood Speedometer over the years.

https://www.nhspeedometer.com/