Bought a new to me 2013 Range Rover Supercharged last week. Two issues persist.

I installed a new main battery to set a baseline. There is not secondary battery. I have not reset the Battery Monitoring System as my ICarsoft LR2.0 arrives tomorrow. My Gap IIDTool won’t work to replace the battery.

1. Navigation screen sits at ‘navigation initializing’ for quite some time. Usually after 15 minutes it catches up and starts to work. If I shut the truck down for a minute or two it the nav works right away. If I shut it down for longer, the nav initialized again. I pulled out the head units and blew out all the connections. Seems like a head unit internal battery isn’t maintaining a charge.

2. The right rear headrest monitor doesn’t not turn on. I swapped it with the left headrest and the problem stayed with the right side. I swapped the headrest harness from the headrest to the floor connections. The problem stayed with the right side. The problem is between the right seat and the head unit. I pulled out the head units and blew out all the connections. I have not pulled the truck apart to trace the right seat connections to the head unit.

These are the errors I get. I can clear them and only the ATCM error persists. The others come back if I turn the truck off.

The right rear screen still won’t work and the nav initializing continues. I have not tried the rear headrest screen once the nav initializing stops and the nav starts to work.

The ECU updates shown are plentiful, but these are the two I believe are related to my issues and that may require updating. I am going to send to Gap to see what might be next.

Any ideas?

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I swapped the rear screen connections at the RSE ECU and he problem moved to the left side. Looks like I need a new RSE ECU. Lithuanian EBay to the rescue. I hope it works when it arrives.

Issue #1 with my navigation screen was resolved by a dealer software update. This problem is known and there is a technical bulletin.

I also updated the maps with the software from the HERE Navigation site. This took almost 3 hours to complete.

Still waiting on delivery of the used video control module from Lithuania. It is on a slow boat.

thats partly good news , keep us updated..  ... - .- -.




Y. O. L. O.
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Hi , really interested in your post I have the exact same problem with my 2014 Autobiography , and the same codes stored , did the new RSE just plug in and work ? Was there any programming to do ? Think I might order an RSE for mine as it seems you have done the diag for me !