Vehicle alarm systems and car security systems - Alarm Systems - WARRINGTON - Laserline - LASERLINE SPA LTD - Page one.

All Got stranded on Friday evening as immobiliser refused to disengage, usual symptoms, car starts but dies almost immediately as (suspect) fuel pump is depowered. After calling breakdown firm and waiting half an hour I tried it again and it worked so drove home without stopping. Saturday it worked fine but Sunday it refused to play ball and is now stuck on my driveway. This is not the first time but usually after a number of attempts it works (worst is about 20 tries) but I am sick of it and resolved to remove the immobiliser function and just have the alarm. Not sure if my car had an alarm/immobiliser as standard as this seems to be an aftermarket item, Laserline 996KB. Saying that the alarm functions off the audi keyfob and the immobiliser armed lamp is the lamp on the dash rather than the LED on the immob key socket, but that may have been spliced in.

Immobiliser key socket is: The immobiliser is: So I spent yesterday afternoon pulling off panels and tracing wiring but I am wary to continue without a bit of research. Lots if non-standard wiring coming from the alarm unit to the main loom: I have found an installation guide on the web from which it looks fairly straightforward, most of the wiring (yellow and blue wires) appears to be to flash the indicators and beep the siren, as well as sensors on doors and internal ultrasonics. The guts of it is two stop circuits which are, for security, all black! So the plan is to follow the black wires and see which car systems are interrupted by the immobiliser.

Link to manual: So now the question, does anyone have any experience in doing this or shall I just plod on myself? Any ideas what systems may be disabled, the manual says starter and fuel pump but I am sure the starter is not disabled on mine, fuel pump seems likely but not sure what else (car is a A4 B5 1.9 TDI AFN Auto)? I am opening myself to a world of pain?

Any hints or tips are welcome, I know that getting in a mobile auto electrician is probably the simplest/best solution but they dont seem to exist over here and the thought of getting it transported (£200) and then fixed by a pro (£100 ph) is not an option. Also I spend my daytime designing landing systems for airports so refuse to be beaten by this! Working conditions are crap though, lying in the footwell of the car tracing wiring which has been designed by MC Escher and then cut too short, aarrrggghhh! Cheers Stuart. OK, assuming no one has had similar probelms and/or solutions so thought I would put this on in case someone else ever does. Spent Tuesday evening tracing wires based on the wiring diagram, most of the wiring is to do with door sensors, siren and flashing the indicators so could safely ignore those.

The group of black wires which immobilise the car feed up into the box in the engine bay where the ECU is located, most of mine were earths or just dead ends so only found two which were actually connected to a thick Black/Red cable which according to Haynes is the fuel pump relay feed as shown. So snipped off the two wires which go to the immobiliser and reconnected the two ends of the Black/Red wire, connect battery, cross fingers and turn key.

Bingo, problem solved, car starts no problem, immobiliser is no longer.immobilising! Alarm still functions as it should and the immobiliser is still 'on' but now does nothing, although it is flashing the indicators as you drive along so have to remove the feeds to those as well,:-).

Windows 7 enterprise sp1 iso torrent. Quite pleased with myself overall, problem solved with no spend apart from a few evenings work. OK, might have spoken too soon, went out to car yesterday and evening and started it.and it died.just as if the immobiliser was still on. Luckily I hadn't removed the socket from the dash so put the key on and the immobiliser disengaged successfully so was able to make it to the takeaway:-) I couldn't work on it yesterday evening as after dinner we had a monster lightning storm with torrential rain so no way was I lying half in the car getting soaked. I had to use it for work this morning (normally use the bus) and again immobiliser is still doing something but operated correctly with the key so got here OK. Will probably spend lunchtime out in the car park tracing more wires.

Cannot see what I have missed from the wiring diagram though! Will keep you posted. Quick Navigation • Site Areas • • • • • • • Forums • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •. Disclaimer: VW Audi Forum is an 'independant enthusiast website', administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.