I'd love to see the list of 'recommendations' and just how far down that list 'replace front camera' is on it... And how they justify a charge for the diag session plus 2.75hrs labour. You can change a camera in the front bumper in about 5 minutes, if its just the camera and not a harness issue.

I agree with your reply but I won’t be paying it. It will be interesting to see if it’s the camera that’s causing the error msg. From what I have read on here and other sources it seems mostly to do with the radar sensors at the rear of the vehicle. I know the camera is a 5 minute job but doesn’t the bumper have to be pulled and cameras recalibrated surely that going to take some time. I’ve only had the vehicle a week so a newbie on this l405 . Apparently the only other fault on the diag was some kind of module for the mist sensor located at the rear view mirror but he cleared the fault . I’ve never heard of a mist sensor 🤷‍♂️

I've changed many front bumper cameras without having to remove the bumper cover - once you know, you know. There is a misting sensor used to control the screen air vent and the auto heated screen, tbh, that sounds a very low number of DTC's, most L405's have a handful of intermittent, non-critical DTC's sprinkled across various systems. The front cameras don't require calibration, they're only for viewing, not doing.

Revisiting the reverse traffic sensor issue - not sure if my code reader (Autel MaxiAP 200) isn’t going deep enough, but the only two codes showing are U0046-87 (Instrument cluster control module, Vehicle communication bus C) and U0001-87 (Image processing control module A, High speed CAN communication bus). Both are permanent and will not clear.

I assume the latter is flagging the damaged module - is “A” referring to the nearside?

Entirely from memory, yes - you can confirm by unplugging the other side which should then throw a 'B' DTC

Great, thank you - looks like a replacement module needed.

Check the connector for water ingress & power supply first - an unresponsive module could be because it has no power (or not enough voltage) to it. Also check the ground connection.

There is some minor damage (small dent on the edge of the sensor face), from the inner bumper moulding squashing it - will check, thanks.

The housing may be damaged - and the emitter/receiver may well be out of alignment but that shouldn't prevent communication.
Are you getting the system status LED illuminating on both mirrors?
Because it's on MS-CAN, it can operate 'one-legged', so unless there's been damage to the harness, it's likely either a power, ground or module issue.

Yes - permanent orange dot in both mirrors and rear traffic/blind spot monitoring not available messages.