headlamp communication error

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Bandit12
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headlamp communication error

Post by Bandit12 »

I've got a persistent fault with my C5, diagbox global assessment lists "Headlamp/directional headlamps communication error" in red I tried clicking on fault to open it up and gain more information but nothing happens
Any ideas? Should I be checking wiring etc?

Gino
2002 Citroen C5 2.2Hdi exclusive estate (sadly gone) :(
2009 Citroën C5 X7 2.0 hdi (136bhp) exclusive estate (Oh wow what an upgrade) 8-)
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GiveMeABreak
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Re: headlamp communication error

Post by GiveMeABreak »

I already answered it on your last Diagbox post Gino. :) That is only for models with directional Xenon headlights - which you don't have, so ignore it. It's possible that in the past at some point the BSI may have been mis-configured with this option and therefore the BSI can't talk to the ECU as it's not there.
  • Check in the BSI for the option that says 'Type of Bend Lighting'. This should be set to 'Static Lighting controlled by the BSI'.
  • The other option is 'Directional Headlamps' - make sure this is set to 'Absent'
Please Don't PM Me For Technical Help

Marc
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Bandit12
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Re: headlamp communication error

Post by Bandit12 »

:oops: oops sorry Marc, didnt notice your post on the diagbox topic. I got a bit confused cos my car does have directional headlights and headlights were also pointing low. No idea if they have self corrected since broken ECU wire was repaired as not driven car at night since lock down began. I'll point car at the garage tonight and have a look :)

Thanks again

Gino
2002 Citroen C5 2.2Hdi exclusive estate (sadly gone) :(
2009 Citroën C5 X7 2.0 hdi (136bhp) exclusive estate (Oh wow what an upgrade) 8-)
User avatar
GiveMeABreak
Forum Admin Team
Posts: 37005
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5646

Re: headlamp communication error

Post by GiveMeABreak »

Have you changed your car? The one I have is with VIN ending in 848?

If this is the same car as the one I have for you, you have halogen headlamps, not directional Xenons - hence the confusion on my part...

This is not to be confused with the headlamp vertical levelling motors on Halogen headlamps, which are not the same as the active directional lighting system.
Please Don't PM Me For Technical Help

Marc
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