Having got my Fleel2 driving (mostly OK) after I repaired the engine damage caused by a previous incompetent technician, I moved on to a couple of other issues with it.

One issue being with the PDC system.
When I bought the car, it was missing 3 rear sensors, which I figured I'd replace to get the system running.
To my surprise, fitting the missing sensors didn't fix the issue. There is still a long beep when turning on the ignition, and the light on the PDC switch flashes if the switch is pressed.
I read the codes and it's saying there's no power to the front and rear PDC system.
I wondered if 1 of the new rear sensors was faulty, so disconnected the complete rear harness at the bumper harness joint, and re-read the codes. This time it said the sensors were open circuit, but still shows no power to the front and read PDC system.

So does anyone know what the issue could be? Is it likely to be the PDC module? I've checked the relevant fuse, and replace a fuse next to the PDC fuse, as it was missing, but the PDC still isn't working.

Any help would be appreciated.

Cheers 2009 Rimini Red SE TD4. Soon to be sold.
Hyundai Ionic 5 Ultimate on order.
Gone. 2006 Tonga Green i6 HSE.