New Discovery V Talk about the new Land Rover Discovery 5
Sponsored by:
Sponsored by:

Assistance Required – Turn Signal Issue on Land Rover Discovery 5 (L462)

Thread Tools
 
Search this Thread
 
Old Oct 10, 2025 | 04:27 AM
  #1  
Aap the RoverHead's Avatar
Thread Starter
|
2nd Gear
Joined: Oct 2025
Posts: 2
Likes: 0
Default Assistance Required – Turn Signal Issue on Land Rover Discovery 5 (L462)

Dear all,I am experiencing an issue with my Land Rover Discovery 5 (L462), which was imported from the US to EU. I have replaced the original tail lights with EU-spec units, installed by a local Land Rover specialist. However, there is still a problem with the turn signals. The yellow indicators work correctly, but the red lights (presumably the brake lights) also flash simultaneously when the turn signal is activated.

Could this be a programming issue? Is there any chance you could assist with this matter? If necessary, we can send you the ECU via courier.

I would greatly appreciate your support and advice on resolving this issue.
 
Reply
Old Oct 12, 2025 | 06:26 PM
  #2  
Chucktastic's Avatar
Mudding
Joined: Jan 2023
Posts: 216
Likes: 156
From: Alpharetta, GA
Default

In the US, the brake and the directional indicator are one and the same. I didn't know the EU lamps had an orange directional indicator. I'm sure there's a configuration change the dealer missed to separate the light functionality.
 
Reply
Old Oct 13, 2025 | 12:54 PM
  #3  
CincyRovers's Avatar
Pro Wrench
Joined: Oct 2023
Posts: 1,605
Likes: 1,152
From: Cincinnati, OH
Default

Originally Posted by Chucktastic
In the US, the brake and the directional indicator are one and the same. I didn't know the EU lamps had an orange directional indicator. I'm sure there's a configuration change the dealer missed to separate the light functionality.
North America is the only region on the planet that allows for brake lights and turn signals to be the same unit. Everywhere else amber turn signals are the law.
 
Reply
Old Oct 27, 2025 | 04:59 PM
  #4  
Chucktastic's Avatar
Mudding
Joined: Jan 2023
Posts: 216
Likes: 156
From: Alpharetta, GA
Default

@Aap the RoverHead , Wid you ever figure this out? What part numbers did you use for the EU tail-lights? Do you have a picture of them in operation? I'm not sure if you have a GAP tool available to you, but there are a few promising settings that might get them working properly.
 
Reply
Old Nov 12, 2025 | 09:32 AM
  #5  
VeryDisco1990's Avatar
Overlanding
Joined: Feb 2025
Posts: 21
Likes: 1
Default Conversion

I just did the butt-lift conversion I installed the 2025 tail lights on my 2017. Car is US version. Check the plug in the back and see how many wires you have US has only 4. 1 for break light/turn signal, 1 running light, 1 di feedback and 1 ground. It’s missing the dedicated DI wire.

If someone could chime in I believe unused wires are just being grounded and I think I found it. See picture attached you would just take that DI wire and add it to spot 2 in your harness.

There are also several ccf settings for EU market, sweeping di etc accessible via GAP IID tool.


 
Reply
Old Nov 12, 2025 | 09:55 AM
  #6  
Chucktastic's Avatar
Mudding
Joined: Jan 2023
Posts: 216
Likes: 156
From: Alpharetta, GA
Default

That grounded wire looks to be Green/Brown vs Green/Orange for the DI line. The GN/OG wire would trace back to the body control module rather than going to ground.
 
Reply
Old Nov 12, 2025 | 10:26 AM
  #7  
VeryDisco1990's Avatar
Overlanding
Joined: Feb 2025
Posts: 21
Likes: 1
Default

I wonder if the unused lin/dcm wires are just grounded from the bcm. In the tail light diagram all three are grounded in the taillight. I am just guessing here.

I did bridge the brake and turn signal ( pins 1 and 2) and both the red and amber turn signal worked but at the same time. So another option would be to install one of those turn and break signal splitters.

Ideally it would work with the oem bcm.
 
Reply
Old Nov 12, 2025 | 11:55 AM
  #8  
Chucktastic's Avatar
Mudding
Joined: Jan 2023
Posts: 216
Likes: 156
From: Alpharetta, GA
Default

The right way to do it is to trace to where the GN/OG wire lands on the BCM and install a new "overlay" wire in the BCM harness connector back to the taillight DI pin. After that's done you'd need to change the appropriate settings in the GAP tool to separate the DI wire from the Brake wire. It may also need to be done for the tailgate lamp since the DI light wraps across both lamps.
 
Reply
Old Nov 13, 2025 | 02:20 PM
  #9  
Elzot's Avatar
Mudding
Joined: Mar 2024
Posts: 221
Likes: 51
From: San Diego
Default

Originally Posted by CincyRovers
North America is the only region on the planet that allows for brake lights and turn signals to be the same unit. Everywhere else amber turn signals are the law.
True. But in the US, you can have the yellow turn signals and red stop lamps. I don't know why LR and others bother with a US version.
 
Reply
Old Nov 13, 2025 | 02:38 PM
  #10  
VeryDisco1990's Avatar
Overlanding
Joined: Feb 2025
Posts: 21
Likes: 1
Default

These days they just program them differently. The new led turn signals on the LRs I have seen amber and red sweeping ones. I think it’s just a ccf setting.
 
Reply



All times are GMT -5. The time now is 01:07 AM.