C4 I directional headlamp ECU

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GiveMeABreak
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Re: C4 I directional headlamp ECU

Post by GiveMeABreak »

You'll have this if you have SEDRE - those designations are the PIN numbers in the 32 bit connector concerning the comms and power. I haven't included all the ones from the headlamps themselves or the height correctors as these won't be relevant given that the lights are working and that your issue is a communication one to and from the ECU - so that will either be because the ECU is not powered up, not earthed or the CAN wiring is faulty I suspect.

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Cutac
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Re: C4 I directional headlamp ECU

Post by Cutac »

Problem solved, it was the fuse. But for some reason, the manual that came with my car shows a different fuse layout. Fuse F6 was the culprit, but my manual says it's a fuse for the automatic transmission (which I obviously don't have).

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Re: C4 I directional headlamp ECU

Post by GiveMeABreak »

I didn't mention the fuse as F6 was listed for Halogens and Auto Transmission as you said - but that's typical of PSA!

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Cutac
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Re: C4 I directional headlamp ECU

Post by Cutac »

Can't believe it!
But hey, all that matters is that my headlamps work properly now :D

Thanks for your help, Marc!