M1123 Tachometer not reading

[Alex83]

Hello fellas,

I have a 2006 m1123 with original tachometer. When I was replacing the other gauges I lost power to the oil pressure and tach. Put old gauges on and still nothing. Grounds are in working order plus I made an additional harness for the guages. Within the cluster of wires I saw there is a 27N 27H. Male female. That weren't connected. All my other wires were labeled. I've tried looking in the schematics for either one of those wire with no luck. Does anyone know. If they connect to eachother. Thank u

 

[Retiredwarhorses]

The tach gets its power from the gauge…its wired through The OP gauge

 

[Alex83]

The tach gets its power from the gauge…its wired through The OP gauge

Yes but I have no power coming from 27M I believe other wire is 36a. 27m comes from tachometer

 

[Alex83]

Yes but I have no power coming from 27M I believe other wire is 36a. 27m comes from tachometer

Thank u for responding

 

[KKroger]

Is it the tach triggered from the AC tap on the alternator regulator?

 

[Alex83]

Is it the tach triggered from the AC tap on the alternator regulator?

Yes it is. Looking at diagram now. Thank u

 

[KKroger]

Yes it is. Looking at diagram now. Thank u

Sometimes it takes a few seconds before the tach registers... at least mine does. But then all is fine...

 

[Retiredwarhorses]

Sometimes it takes a few seconds before the tach registers... at least mine does. But then all is fine...

the tach signal comes from the Generator, the power comes from a gauge that’s tied to the ignition in the “run” position, like the heater and wiper motor.

 

[KKroger]

the tach signal comes from the Generator, the power comes from a gauge that’s tied to the ignition in the “run” position, like the heater and wiper motor.

Yes, I know... I posted the page from the installation instructions.

 

[Retiredwarhorses]

Yes, I know... I posted the page from the installation instructions.

Great, perhaps others don’t know this…now they do.