With those battery readings battery IS nota in good condición
Bluetooth module on with the igniton and if battery IS low it Will not power on and you Will have issuea with the radio.

You can conect junpping wires to other car battery and sitch on the igniton and If would bet that bluetooth Will show 2012 Range Rover 4.4 tdv8 Autobiography

Curious situation with the Bluetooth module. I bought a MOST bypass connector and unplugged the Bluetooth module and the radio started behaving itself once again. I pulled the module apart and found absolutely nothing obviously wrong so I put it back together and plugged it all back in. Clearly the radio didn't work but when I unplugged it again and fitted the bypass module the radio refused to play. No idea what happened or why. All rather confusing.

Sounds like disconnecting both the MOST fibre and copper cable then fitting the MOST bypass is telling the head unit not to bother looking for a BT unit as it's not there. That allows the radio to work.

If you then reconnect the copper connector then the head unit will be looking for the BT unit and finding a faulty one, stopping the radio from working.

The failure in the BT unit may not be obvious and the only way to be sure is to swap it out with a known good unit.

Mike

That doesn’t explain why the bypass worked fine at the first attempt and then failed to work on subsequent attempts.

With the bluetooth ,module bypassed the only permanent error I'm getting is that the Parking parking sensor control module is missing. After a bit of driving it usually adds the parking brake control module to that list which is rather bizarre as the parking brake continues to work. The latest error is that the DAB unit has a system internal failure.

Anyone know where the DAB unit sits? Is there a common element to all of these? Could it be the antenna module? Is there something I can do to test whether this is functioning properly?

G'day Mike,
I've just got a very similar issue with my MY10 L322, but it was pretty easy to determine that mine was caused by water ingress after a pretty severe storm the other night.
I had the exact same symptoms as you initially, but now I have the screen-saver of death and no parking sensors. I'd had trouble with the parking sensors previously, and had taken the bumper off and cleaned and checked them, and they were working again, but on reflection, it may have been the start of the water problem, which is obvious now. It could be that you have a water problem, but not obvious.
After work today I'm going to remove the modules and try to dry them out and resuscitate things.

Did you get to the bottom of your issue?

Regards,

Eddy

Interesting. Thanks.

I've been struggling to work out where the parking sensor control module is located.

Any and all suggestions would be welcome.

bigbo wrote:

Hi the parking aid module is in the right hand cubby, the BT module is in the left cubby with all the audio kit. So probably not related.

The BT module is on the top of the stack of audio equipment. To check if its the BT module causing your issues you need to remove it from the MOST ring and connect a MOST bypass connector (available on eBay) so that the MOST ring is complete. If this clears your problem then you have proved that the BT module is faulty.

Mine is a MY06 which had a Nokia module but I swapped it for a 2010 module, hopfully this picture will help a little, the BT module is the one at the top with the orange MOST cable

Click image to enlarge

David

There is only two optical cables connected to the RSE module, the third that is visible is running behind to the TV tuner.
Just an optical illusion!

David Range Rover 4.2 Supercharged 2006
Ford Focus EcoBoost 1.5 2017
MG TF 2003

Previous Cars of note
Land Rover Discovery 2
Jaguar Mk2 3.8 - Company car
MG Midget 1974 - Concours

optical illusion very good i can see it now  new vehicle purchase
2007 supercharged 4.2 java black .sand leather vogue se trim
previous cars .
range rover classic 200 tdi
discovery 1 200 tdi
freelander 2 2008 hse
discovery 1 300 tdi
p38 4.0 ltr man r380 ex royal support vehicle on v5c
discovery td5 man off roader

Hello bigbo,

I have replaced the original Nokia unit for the AH42-10F845-AA module.

I have a pairing 2121 issue. I see on this forum many have pairing issues.

I find if I have my iPhone at the Bluetooth menu, click on the Land Rover name it may result in pairing. There appears to be a small window after getting into the LR, inserting the IGN key, turning to the second position, sometimes results in pairing.

I realise your LR is a year newer but we have both inserted a new BT module.

This making the iPhone pair is automatic in other non LR vehicles I have paired with previously.

Do you have or had a similar puzzle.

Sorry cant help as I do not have an iphone. My phone connected day 1 and has never failed. Range Rover 4.2 Supercharged 2006
Ford Focus EcoBoost 1.5 2017
MG TF 2003

Previous Cars of note
Land Rover Discovery 2
Jaguar Mk2 3.8 - Company car
MG Midget 1974 - Concours

Thank you for your reply.

I have tried an Android Phone with the same problem.

On power on the LR screen lights up, sometimes with the message No phone Found.

There is a sound from the rear speakers like a single quiet Bong. If I try to connect/pair before the Bong, 8 out of 10 we connect.

The new Bluetooth module I have was from a working vehicle.

Thank you again.