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Poulstonb

Member Since: 30 Jun 2022
Location: Styal
Posts: 88

Problem lights

Evening all
I’ve installed new Osram led headlights with angel eye DRL
I’ve an issue with one of the lights…….
With Side lights on angel eye comes on both
Then put on main beam angel eye stays on both plus headlight
Then put on full beam and the angel eye goes out on one of the headlight
Switch back to main beam and side light leaving only one of the angel eyes on. Could this be a switch back issue with the headlights?

Click image to enlarge

4th Jan 2023 6:01pm

Poulstonb

Member Since: 30 Jun 2022
Location: Styal
Posts: 88

Click image to enlarge

4th Jan 2023 9:58pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

I'd hazard a guess that your vehicle is fitted with dim dip and it's this system that's creating the issues with your LEDS. Find the large resistor under the drivers wing somewhere in front of the aerial and unplug it, to see if I'm right. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

5th Jan 2023 9:11pm

Poulstonb

Member Since: 30 Jun 2022
Location: Styal
Posts: 88

Thanks for the reply
What’s dim dip and how would I know if my vehicle has it ?

5th Jan 2023 9:28pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

Dim dip was a (largely pointless) safety feature introduced in the 90's whereby the headlights are made to glow when the side lights are on and the engine is running. This is achieved by running the dipped beam bulbs filaments on a reduced voltage by way of a large resistor. Not only did this reduced voltage shorten the life of regular halogen bulbs, it plays havoc with LED's. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

Last edited by LandRoverAnorak on 6th Jan 2023 11:59pm. Edited 1 time in total

5th Jan 2023 9:58pm

Poulstonb

Member Since: 30 Jun 2022
Location: Styal
Posts: 88

Definitely didn’t have dip dim before led install .

6th Jan 2023 8:13am

Penfold_6290

Member Since: 22 Sep 2021
Location: Dorset
Posts: 319

Have you swapped the headlights left to right to see if it is a fault with the light units or if it's a wiring fault? Do that first then report back.

6th Jan 2023 10:22am

Poulstonb

Member Since: 30 Jun 2022
Location: Styal
Posts: 88

Eureka !!!
Problem with switch back function on one light , company are changing unit for me .
Thanks for suggestions 😀

6th Jan 2023 10:49am

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