My Volvo A25C s/n 5350V11726 tach has stopped working, works sporadically to be more specific. A multitude of wires back there for it. Wondering if anyone could point me in the right direction of troubleshooting and most likely causes for this. Loose connection somewhere I would assume but trying to trace all the different wires.
I6 is the Tach. Mine is super flaky as well. Doesn't work until I get to about 2000 rpm.
Thanks
The Relay ( R11 ) is a rotational relay and nigh on impossible to find its the first thing to go when we break an A25C for parts, I have been trying to find an aftermarket equivalent for years with no real luck, it's normally what gives up first, Volvo no longer stock the part and motormeter no longer make it so.....Goodluck with your hunt if that is whats failed.