I’ve bought an approved used 2018 L405 P400e in Autobiography trim about a month ago and have started to experience technical problems. The latest and lasting one is a camera system failure.

Has anyone experienced this before?

Could it be related to doing only short trips (on mainly battery) so e.g. the 12V battery is running low and needs to be trickle charged? I’ve got a Noco Genius 10A so that’s no problem.

I’d just like to see if there is an easy fix before I make use of the nearest JLR dealership and waste a lot of time.

Do you have any DTC ? can they be reset?
Have you searched the forum? 2018 SE SDV8 4.4 Byron Blue

No I don't know the DCT but I've ordered an OBD reader to find out.

I couldn't find anything useful on the forum. The only thing I found was an erroneous parking camera module.

This morning for example the reversing camera worked when driving away from home but when I parked up the car a few minutes later at the station it was the usual fault. Below are a few pictures I took yesterday.

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Try charging your battery lots of Gremlins appear when the battery is struggling 2018 SE SDV8 4.4 Byron Blue

I’ve charged my battery last night but my Noco Genius 10 immediately did show that the charge was 4 out of 4 so that shouldn’t be the problem.

I’ve now bought an Autel AP200 to get the error code. First of all, Autel doesn’t recognised the P400e as its own model. Then I just chose the SDV8 model as the version and ran the diagnostics and got lots of error codes. The one related to the parking cameras is

4.1 U0046-83 Vehicle Communication Bus C - Intermittent

That error also appeared after clearing all other errors and after turning off and on the ignition nothing changed, the cameras still didn’t work.

Unless anyone has any other suggestions I’ll contact Land Rover to get an appointment to sort this out as it’s very annoying on such a big car to not have cameras. It’s all under warranty anyway.

Kot wrote:

Try charging your battery lots of Gremlins appear when the battery is struggling

Hoi! I resemble that remark!  “If it ain’t broke, don’t fix it” -where’s the fun in that?

Arbit wrote:

4.1 U0046-83 Vehicle Communication Bus C - Intermittent

That error also appeared after clearing all other errors and after turning off and on the ignition nothing changed, the cameras still didn’t work.

Unless anyone has any other suggestions I’ll contact Land Rover to get an appointment to sort this out as it’s very annoying on such a big car to not have cameras. It’s all under warranty anyway.

No not an easy fix--- As its an approved vehicle you should have JLR warranty so no need to delve further yourself---take it in to the dealer.

In my WS manual it states your DTC as below

U0046-83 Vehicle Communication Bus C - Value of signal protection calculation incorrect
Invalid data received from another control module through the high speed CAN bus (chassis)

NOTE:
Do NOT install a new chassis control module as this will NOT rectify the fault
Using the Jaguar Land Rover Approved Diagnostic Equipment,
check the snapshot data to determine the invalid data source control
module. Check the relevant control module for related DTCs and
refer to the relevant DTC index

But as a matter of interest

Looking at my electrical drawing all camera's feed into the Camera control module -so could be a fault there?
Also could be faulty ground on that module?
Also there is a 5A fuse in rear JB (59R)
Also a Flex ray bus feed (Bus C?) from Assembly BCM-GWM (Body Control Module-Gateway Module) probably this giving your error code. 2018 SE SDV8 4.4 Byron Blue

Thanks a lot for your help, I shall proceed to get an appointment with the dealer to sort it out.