Hi guys as the heading says I've got no light come up on the dash and when I check the iid tool its got a malfunction and a code of U1A38-87 and U1A39-87...but on the the iid tool its activated but fault anyone got any clues where to start?

Does your heated steering wheel work?

I found this is in the workshop manual, hope it helps

Refer to the electrical circuit diagrams, and check the power/ground supply and Communication circuit to the Headlamp Power Module. Using the manufacturer approved diagnostic system, clear stored DTCs in the Adaptive Front Lighting System (AFS) Control Module. Cycle the ignition state to off, then return to on and check for stored DTCs. If DTCs U1A38-87 and U1A39-87 return suspect Adaptive Front Lighting System (AFS) Control Module internal fault, If only DTC U1A38-87 returns suspect Headlamp Power Module internal fault. Replace as required. Refer to the new module/component installation note at the top of the DTC Index

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

Kezbo funny you should say that but no the heated steering wheel doesn't work either...no light when you push the button on like it's dead. Do you think that's something to do with it?

Hi david I haven't checked the power as of yet as the main lights work and indicators are all OK. Just the adaptive corning bulbs don't work. Tried clearing the codes but both codes come back instantly sadly. So like you say it could be internal problem checked the fuses in the fuse box but I did read it could be a relay but not sure

William97841 wrote:

Kezbo funny you should say that but no the heated steering wheel doesn't work either...no light when you push the button on like it's dead. Do you think that's something to do with it?

Hi kezbo I've finally got round to changing that relay it's been crazy. But I've changed it and it has now restored power to the heated steering wheel bonus but cleared the codes and only u1A39-87 has returned so I'm guessing the module or whole light has gone wrong but thanks for your help got my heated steering wheel back lol. Now jljust gotta tackle that code sorry for the long delay

Part way there then! As you have got rid of one of the codes you may now be able to swap the afs modules on the headlights side to side and see if the error code changes. That could then indicate if it's one of the headlight modules or the module in the footwell (not sure it would be that one as think you would have an error that isn't sided).

Right so changed the module done nothing swapped the light modules over now the left light is stuck down and the right one still has a fault but still no light on the dash the orange light in the bottom corner that remains Blake. With the iid tool it comes up with adaptive module and when I check to see if it's on it switches between on and off within in milliseconds..talk about confused

When you say you changed the module, which module?

The module..left hand side of the passenger foot well. Ywc500323 changed but no difference

Presume it was a known good module? Did you clear codes and try the headlights after changing the module but before swapping the headlight modules? If so what happened?

So, you swapped the AFS headlight modules side to side, yes, not the xenon ballasts?

Doing that made the left headlight point at the floor, presume it didn't do that before?

Rather than two fault codes you now only have the fault code with the right side headlight. What is the fault code?

Have I interpreted your posts correctly?