Can anyone make sense of this? (with vag-com scans)

[Rhyso]

If the lights are flickering I'd suggest looking to make sure the alternator is working correctly.

It's very unusual for an ECU to bite the dust

[Gabriel2202]

there are a few codes there that all have the ECU in common, i think it may well be an ECU issue too, not sure if you can get a new ECU coded into the current immo setup or maybe just have the immo removed from it all together, it is making me wanna scan the wifes car now though as her clocks started flickering a couple of weeks back

It may be worth a go mate, for peace of mind!

im not sure on weather there is a check for the fault of the ecu but the fact that its throwing out loads of codes usually indicates its died, like miggs2002 said you can have an ecu coded into the immobilizer or you can but a second hand ecu, transponder and chip

right, so it may be worth getting the whole setup if i can source someone who is breaking an aum, if the clocks were on their way out anyway.

As an after-thought, there is a clifford alarm/immobilizer system installed by the previous owner, could this be causing some of the issues?

If the lights are flickering I'd suggest looking to make sure the alternator is working correctly.

It's very unusual for an ECU to bite the dust

Thanks for your reply 

Would they be flickering whilst driving if it was the alternator? It was the mpg display that was flashing (a few times a second) rather than the management lights...

[Rhyso]

Yes they can flicker whilst driving as the alternator is not putting the charge back into the system

Also check the terminals and fuses on top of the battery as there could be an intermittent contact.

Start with stuff that's free and easy to check    Most garages will do a free test on the charging system.

[miggs2002]

i believe that if you have immo2 clocks or earlier then you can fit any mk4 clocks into it as only the immo3 ones have the immobiliser in the circuit, i have never tried this and don't know just how true it is but if you have any friends or family with a mk4 you could always try the clocks, just takes a min to remove them

as for the flickering, it the whole clocks on the wifes that flicker, if yours is just the fis then it may just need re securing, take the clocks out, remove the back, now on the circuit board there is a metal cage that will come off the board with the tist of some metal legs, if you search it on google there will be a guide of how to fix mk4 fis display as i used it for mine some time ago but have forgotten exactly how to do it

as for the clifford, it all depends on the fitter, the mk3 onwards was fitted with a factory immobiliser, some fitters use the standard immo wire in the aftermarket alarm to that others make use of the separate immo in the new unit this giving you 2 immobilisers in 1 car, it's highly unlikely that an after market immobiliser is the issue unless it's wire in to the factory unit, without checking the wiring of it all it's hard to say which way round it's been done

[Gabriel2202]

Yes they can flicker whilst driving as the alternator is not putting the charge back into the system

Also check the terminals and fuses on top of the battery as there could be an intermittent contact.

Start with stuff that's free and easy to check    Most garages will do a free test on the charging system.

cheers mate, yeah im gonna go out and give a few of the terminals a clean as one on top of the battery has oxidised a bit, check the fuses and generaly peer around to make sure everythings tight too 

i believe that if you have immo2 clocks or earlier then you can fit any mk4 clocks into it as only the immo3 ones have the immobiliser in the circuit, i have never tried this and don't know just how true it is but if you have any friends or family with a mk4 you could always try the clocks, just takes a min to remove them

as for the flickering, it the whole clocks on the wifes that flicker, if yours is just the fis then it may just need re securing, take the clocks out, remove the back, now on the circuit board there is a metal cage that will come off the board with the tist of some metal legs, if you search it on google there will be a guide of how to fix mk4 fis display as i used it for mine some time ago but have forgotten exactly how to do it

as for the clifford, it all depends on the fitter, the mk3 onwards was fitted with a factory immobiliser, some fitters use the standard immo wire in the aftermarket alarm to that others make use of the separate immo in the new unit this giving you 2 immobilisers in 1 car, it's highly unlikely that an after market immobiliser is the issue unless it's wire in to the factory unit, without checking the wiring of it all it's hard to say which way round it's been done

Ah right, so if i already have immo2 clocks i dont need to code in the new ones? unfortunately I'm the only mk4 owner I know!  But I'll definately have a check of the fis and make sure it's not loose.

The clifford uses its own immobiliser, i have to disengage it on the fob before turning it over.

this car business is never ending! 

[miggs2002]

do you have a non immobiliser key to see if the key will start with the clifford disengaged but no mk4 immobiliser chip? also with regards to the clocks, i have never tried it with my own as i have and immo2 car and an immo3 car, i have removed the clocks to fix the fis in my immo2 car and when i went to move the car with the clocks out it wouldn't work as the clocks were out so i'm not 100% how true that is, i can try it with both the cars but it will be Sunday before i get chance as 1 is the wifes and she works from 6.30am till 10.00pm so it's a bit late to be messing with stuff like this on the drive lol

[Gabriel2202]

do you have a non immobiliser key to see if the key will start with the clifford disengaged but no mk4 immobiliser chip? also with regards to the clocks, i have never tried it with my own as i have and immo2 car and an immo3 car, i have removed the clocks to fix the fis in my immo2 car and when i went to move the car with the clocks out it wouldn't work as the clocks were out so i'm not 100% how true that is, i can try it with both the cars but it will be Sunday before i get chance as 1 is the wifes and she works from 6.30am till 10.00pm so it's a bit late to be messing with stuff like this on the drive lol

haha  yeah that would be great mate! I dont have a non immobiliser key unfortunately, i thought i read that you need to have the clocks coded in with a secret code you have to obtain through vag-tacho, but i could be wrong?

[Gabriel2202]

started p*ssin it down when i went out, but think it may be down to a dodgy alternator connection...



will give it a clean tomorrow post results.

[Gabriel2202]

also found that guide you were on about miggs2002

http://uk-mkivs.net/forums/t/397946.aspx

[miggs2002]

do you have a non immobiliser key to see if the key will start with the clifford disengaged but no mk4 immobiliser chip? also with regards to the clocks, i have never tried it with my own as i have and immo2 car and an immo3 car, i have removed the clocks to fix the fis in my immo2 car and when i went to move the car with the clocks out it wouldn't work as the clocks were out so i'm not 100% how true that is, i can try it with both the cars but it will be Sunday before i get chance as 1 is the wifes and she works from 6.30am till 10.00pm so it's a bit late to be messing with stuff like this on the drive lol

haha  yeah that would be great mate! I dont have a non immobiliser key unfortunately, i thought i read that you need to have the clocks coded in with a secret code you have to obtain through vag-tacho, but i could be wrong?

i have read the same thing on one forum then i read the immo3 clocks are the only ones that need coding if going into another immo3 car, not sure which is right so will just try it when i get chance

also found that guide you were on about miggs2002

http://uk-mkivs.net/forums/t/397946.aspx

that's the puppy, dunno if it'll work for you as some people get different results