M108s tachometer not working.

ChristianB229

New member

Equipment
M108s
Jun 26, 2024
5
0
1
Southern Illinois
My M108s has an electronic tachometer and it quit working. Any ideas on how to troubleshoot what the problem is? I already replaced the crankshaft position sensor and it still does not work.
 

GreensvilleJay

Well-known member

Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
11,296
4,841
113
Greensville,Ontario,Canada
check the wiring diagram in the WSM to see where it gets the 'signal' from !
FYI ...My BX23S gets it from the alternator.....
 
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ChristianB229

New member

Equipment
M108s
Jun 26, 2024
5
0
1
Southern Illinois
check the wiring diagram in the WSM to see where it gets the 'signal' from !
FYI ...My BX23S gets it from the alternator.....
Ok, I checked the output at the alternator and it is putting out 2.06vdc and I also have the same voltage on the wire going into the instrument panel. The voltage does not fluctuate when I rev the tractor up or down