- My model of MX-5 is: 2006 NC 2.0L Sport
I’ve recently repurposed my existing foglights as DRLs by replacing the bulbs with LEDs and adding a switching relay activated by ignition on and inhibited by headlights on. I removed the existing front fog relay in the fusebox and connected to the lights with a spade terminal into the relay base (i.e. to the blk/red wires shown on P44 of the Mellens / Mitchell diagrams).
This all works fine, however . . .
When the lights come on, the front foglight indicator in the speedometer illuminates and also stays on when I switch the headlights on (turning the DRLs off) showing it is not indicating the state of the DRL feed after the relay.
It should be pretty clear what’s happening if I could find the configuration at the instrument cluster in the Mellens diagrams, but I cannot see any reference to the fog light indicator in the external lighting (P44) or the instrument cluster wiring P47), or anywhere else.
Is this me going daft in my old age or is it actually missing?