II (GD) 2011–2017
Driver's footwell, under the left side of the dashboard near the steering column. Accessible without removing any trim.
Four generations, 2007–2024. Pick yours.
2017–2024
RHD (UK): driver's side of the dash, low down and outboard of the steering column in the driver's panel bolster. The 16-pin socket sits inside the same recess as the cabin fuse panel, so the pull-off lid marked 'Fuse/OBD' is the landmark — not the bonnet release, which is further inboard. LHD: mirror image, low down to the left of the steering column in the same fuse recess. Hyundai prints separate left- and right-hand-drive illustrations of this panel, so it genuinely swaps sides with the driver rather than staying put. Identical on every PD body — 5-door hatch, Fastback and Tourer — on every trim from S up to N Performance, and unchanged by the 2020 facelift.
One-piece plastic compartment cover marked 'Fuse/OBD'. Grip the moulded edge and pull it straight off towards you — no tools, no screws. The 16-pin connector is immediately visible inside the recess alongside the fuse rows, and there is enough depth behind it for a bulky VCI. Worth knowing before you blame the tool: the socket's own supply comes off the 7.5A MODULE 1 fuse in that same panel, so if you get no power on pin 16 or a dead link, check that fuse first — it also feeds the hazard switch and the door modules, which is a quick way to confirm it.
No diagram for this one yet. Ask for one and we'll draw it. The more requests, the sooner.
Also on this i30
2017–2024
Illustration — use it to know where to look.
RHD (UK): driver's side of the dash, low down and outboard of the steering column in the driver's panel bolster. The 16-pin socket sits inside the same recess as the cabin fuse panel, so the pull-off lid marked 'Fuse/OBD' is the landmark — not the bonnet release, which is further inboard. LHD: mirror image, low down to the left of the steering column in the same fuse recess. Hyundai prints separate left- and right-hand-drive illustrations of this panel, so it genuinely swaps sides with the driver rather than staying put. Identical on every PD body — 5-door hatch, Fastback and Tourer — on every trim from S up to N Performance, and unchanged by the 2020 facelift.
Also on this i30
Driver's footwell, under the left side of the dashboard near the steering column. Accessible without removing any trim.

Driver's side, above the clutch/brake pedal area, below the dashboard. On left-hand-drive models, left of the steering column. On right-hand-drive models, correspondingly on the right side. No cover.
Questions
Step-by-step add-key and all-keys-lost procedures for every i30, which of your tools will do it, and what catches people out.
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