What's in the workshop this week?

[MikkiJayne]

Originally Posted by HPsauce

My "theory" is that the Reverse circuit is the most vulnerable in that later design F125 because it actually takes all the current for the reversing lights, rather than just an electronic signal as I guess the other circuits do.

And it's actually 2 contacts for the full circuit, but one is a continuous track with no break, so it's almost inevitably the one illustrated that will burn out.
Though there is a corresponding mark on the other track presumably from the current load.

However sods law has determined that it's the P/N circuit (starter relay, very clean on your photo) that's given up on mine......

This contact was definitely only for the TCU, as the reverse lights and parking sensors worked perfectly with the stick in R, but the TCU couldn't see it. There was no gear indication on the dash (all the digits were white) and no engagement of the gear until the stick was pushed almost in to P, by which time the reverse lights had gone out. It made reversing on country lanes at night extremely challenging!