Radar cruise control issues

Hi folks,

Need to pick yr brains on this one;

I had my headlights upgraded to LEDs, but that meant removing the front bumper. That did something to the radar units &/or wiring.

I’ve had to replace one radar unit, which now works but there is still an intermittent ent fault in that the adaptive cruise will just randomly switch & display the error message, ‘xxxx not available, no sensor vision’.

Now, I’ve check to left hand unit & plug contacts, all good, the Right unit contacts should be as it’s been swapped, However, there’s zero slack in the cable run on the right, so I’m thinking that one of the wires or connections has been strained or partially broken.

So, has anyone here had to delve into that wiring loom at all? I’m wondering if there’s another connector behind the bumper, or any advice on how to check the continuity on those cores?

I haven’t dived in yet, we’re away for a week now then I need the car for the next week, so I’m hoping for some insight from you guys before I dive into it in August!

Cheers folks!