quote:Have recently replaced both engine bay relays for modern higher current type so no problem there.
While I understand your logic in this statement, when I troubleshoot anything - I'm a Union Inside Wireman - the FIRST thing I do is to not make ANY assumptions.
In fact, since the relays are what you just changed in this circuit and now the circuit is no longer working - I assume it was functional before? - I would check those relays as Step One.
Next, of course, is pull your large amp fuses and check them with a meter - not just visually.
Next, I'd verify good grounds.
Larry