Technical LED headlight replacement

[ChrisSim]

I previously installed an LED light bar to my 2008 Scudo .
I used the existing "driving light" wiring and an over ride switch for the driving light,and all worked properly.
I then decided to upgrade the halogen bulbs in the headlights to LEDs for better lighting.
Now I have a problem that maybe somebody can help with and I will summarise to keep the story short.
1---Light bar disconnected and-- OVERRIDE switch in Off position.
--Turn Headlights on-Lights come on as High beam(HB) both Left & Right. cannot get Low Beam (LB)
-Activate HB switch - nothing happens as both lights are already on HB

Light bar disconnected and --OVERIDE switch in ON position
--Turn headlights on -Left hand side headlight (LHS) comes on as HB Right hand side (RHS) comes on as LB
-Activate HB switch--RHS goes to HB - LHS remains as HB
---Switching off headlights- HB " flasher" works normally in both above instances
2---Light Bar connected and-- Override switch in Off position.
--Turn Headlights on-Lights come on as High beam(HB) both Left & Right. cannot get Low Beam (LB)
-Activate HB switch - nothing happens as both lights are already on HB
Light Bar connected and --OVERIDE switch in ON position
--Turn headlights on -Left hand side headlight (LHS) comes on as HB Right hand side (RHS) comes on as LB
-Activate HB switch--RHS goes to HB - LHS remains as HB
---Switching off headlights- HB " flasher" works normally in both above instances.
The overide switch to the light bar seems to have the same effect whether the light bar is connected or not.
I did reconnect the halogens to ensure all relays were functioning properly , and they did , All switches worked as intended
If all else fails It will be an auto electrician or revert back to Halogens.
Any constructive ideas out there

 

[ChrisSim]

I have read that a CANBUS decoder will fix this problem. Anybody know if this is true?

 

[ChrisSim]

Fixed.I Need to answer my own question . Purchased and fitted a CANBUS decoder . This fixed the problem above . Now all lights work as normal and the lights are bright and useful. Recomend LEDs to anyone with weak lights but you may need a CANBUS decoder . A very inexpensive fix.