Rear fog light for UK registration

Foglights passed MOT and look totally OEM, I'll put pics up if anyone is interested. Waiting for Swansea to register it now.

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I dug out the very late Gen 3 digram, and that switch sort of makes a bit more sense as they've drawn an extra internal wire.

I reckon that the 2 contacts circled in red are the switch, (I don't know why there are 2) and the other is a built in relay contact. (So you don't need a separate relay)
So nulls clash
The light green (4) goes to your fused live
The black (1) & (2) go to earth
Red/yellow (5) goes to the sidelights and illuminates the switch.
Green/Black (3) is the live feed to the foglight
Green/red (6) is the switched earth from the headlights- connect to the red/white from the column if there isn't a green/red.
 

FrankFisher99, since you wired up that fused live feed (Pin 4), what amperage fuse did you choose for the circuit, just for safety reference and so others know what to use for a standard P21W/LED bulb setup?

Lix1 wrote:

FrankFisher99, since you wired up that fused live feed (Pin 4), what amperage fuse did you choose for the circuit, just for safety reference and so others know what to use for a standard P21W/LED bulb setup?

If you look at the diagram you'll see Suzuki specifies a 10A fuse.  For a single 12V, 21W incandescent lamp, a 5A fuse is more than adequate, and an LED would have an even lower current draw.

The fuse here is intended to protect the wring in case of a short circuit (literally to reduce the chances of fire), so it should be sized to protect the wiring you're installing, and we don't know what size wire you're using.  If you have a safety concern, perhaps have an auto electrician do the installation.

Yes, I used a 5A fuse