Comms2000?

[JT]

Hi folks,
My 2002 C5 HDI has started to jump from full beam headlights on, back to dipped beam without touching the stalk.
Sometimes it will stay on full beam for a few minutes before jumping back to dipped and sometimes it will stay on
full beam for only a few seconds!!
Is this the comms 2000 problem I've read about on the forum or is it just a problem with the stalk/switch?
Any ideas??
J.T.

[RichardW]

Both, probably! The COMS2000 IS the stalk / switch (it's an all in one unit covering both stalks and the rotary connector). Not cheap unfortunately, but provided you don't have ESP, it can be changed without a Lexia (requierd to re-initialise the steernig angle sensor).

[JT]

Thanks Richard,
The car is one of the earlier models so don't think it has ESP.
Is the comms unit difficult to change?
I presume it means removing the airbag and steering wheel.

[RichardW]

Never done it, but in principal: Remove air bag, remove wheel, remove column shrouds, remove COMS 2000. Refit is reverse of removal

[JT]

Ok. Thanks Richard.Sounds straight forward enough.
There again is anything ever straight forward with a Citroen??

[Chris570]

very often yes, i've found them very straightforward (XM excluded)

[Citroenmad]

It is an easy thing to swap over, just be sure to follow the procedure for air bag removal (disconnect the battery and wait 20 minutes).

I had one C5 which would indicate left three times, then the indicator would stop and the headlights would come on. Pretty handy

The ESP button on C5Is is a mirror image of the cigarette lighter, just next to the gearlever. If you don't have that its a very easy swap.

[JT]

Don't have any button like that, so will give it a go over Christmas.
Thanks for all the advice.
Happy Christmas folks.

[cachaciero]

If buying secondhand make sure you get the right unit they are different ESP /NON ESP and it is possible that there are differences AUTO Box / Manual don't have the data to hand but the Auto box needs to know if the car is turning which data it gets from the COM 2000 unit.

cachaciero

[Citroenmad]

Also, if buying second hand the stalks/comms2000 units differ with spec. So if you get one from an earlier C5 saloon and yours is a later one with a rear wiper it wont be on the stalk. etc.