Hi is there a diagram or anything a list of which relays are which on my car please my Hayes manual has nothing in it lol.

Download the fifth pdf in the list you'll find here https://www.briskoda.net/forums/files/file/76-mk1-fabia-workshop-manuals/

It's the circuits for early Fabias. Relay info specific to your engine code is probably findable by searching the pdf for AQW. Other relays may be listed near the end with fuse info.

 

Cheers mate your a diamond 😀

me again ok so this is the thing the car thefts by me atm are absolutely horrendous and ive already caught a guy 2 nights ago sniffing around the furbie and my other car. now i know they have immobilisers and steering locks but we know all these things can be bypassed  so ive thought about adding kill switches. from what ive read a good one is to stop the power going to the fuel pump by splicing into the wire and adding a toggle switch but on my 2 cars its a real pia to do it at this location. what i was thinking was to splice into the live feed just up from the fuel pump before the wires go into the plug and pump and add kill switches toggle switches and i would be able to hide them somewhere discreet at the rear say like the rear cupholder or something keeping them out of view. Is this a plausible idea or would it cause an issue to the fuel circuit in any way ???

In terms of security what you are proposing is of little value compared to the RFID coded chip in the ignition key.

 

You say "we all know these things can be bypassed", what do you know that I don't?

 

I know that if your keys or spare keys are stolen then the robber can drive away with your car, I know that if they can get their hands on them for long enough they can be cloned but otherwise nobody is going to drive of with your car even if they break the steering lock.

 

Back in the pre 95 days when RFID immobilisers were not mandatory I created a more user friendly and discreet method of immobilising my cars than a hidden switch although circuit wise thats what it was.

 

I used a latching relay with a tiny momentary pushbutton hidden above the steering column behind the dash panel (the cars were 7's so you could reach underneath when belted in without anyone realising), turn on ignition and the coil & fuel pump circuits were isolated, push button and shout "Contact!" like Biggles and the engine would start and run.

 

No procedure to follow when switching off, just remove the keys as normal & the relay would isolate the circuits and energise a flashing LED, if you stalled the engine it would restart as normal with no faffing around, the important thing is that you dont have to remember to arm the system and give away the switches location by doing so.

 

For motorsport the external cut out switch can unlatch the same relay but covering all circuits in that application. Far more reliable as the switch was then only carrying the relay current and not the full cranking and charging current which oxidises the cheap contacts, they were a major source of breakdowns.

 

The system was also very good for highly tuned engine running a lot of static ignition advance that would either crank very slowly or kick back, you could spin the engine up and then spark up the ignition like Biggles.

Edited 8 June, 20223 yr by J.R.

The issue by me atm is a gang of 3 going around and breaking in stealing car keys etc so i just want to add a bit of extra security that is not obvious and hopefully if the worst happens they will flee knowing the cars will not start peace of find baring in mind as I said ive had the local gutter rats already sniffing around my vehicles.

12 minutes ago, Stewartasb said:

The issue by me atm is a gang of 3 going around and breaking in stealing car keys etc so i just want to add a bit of extra security that is not obvious and hopefully if the worst happens they will flee knowing the cars will not start peace of find baring in mind as I said ive had the local gutter rats already sniffing around my vehicles.

 

Disconnect the battery? Fit CCTV near the cars?

I understand.

 

In which case I commend you to the latching relay and momentary pushbutton as the system is auto-arming so you wont forget or get fed up with setting it.

 

The relays I used were tiny and the pusbuttons equally so as the body and button would pass through a 6mm fixing hole.

Surely you must be more concerned about them breaking into your house for the keys?

 

That should be the focus of your security measures.

 

Are they really breaking into houses to steal a 21 year old small hatchback?

15 minutes ago, AnnoyingPentium said:

 

Disconnect the battery? Fit CCTV near the cars?

already has cctv as you know this does not stop low lifes and keep disconnecting the batteries is not a really good method as its constantly deleting the settings doing that hence why I just want to isolate fuel pumps or ignition would be the other go to area.

12 minutes ago, J.R. said:

Surely you must be more concerned about them breaking into your house for the keys?

 

That should be the focus of your security measures.

 

Are they really breaking into houses to steal a 21 year old small hatchback?

Yes of course i,m more concerned about the house break in but also the cars issue as both myself and my partner depend on these 2 cars for work i,m on constant call out due to my job so cannot afford to have one of the cars stolen, ive taken all precautions i can to safe guard the house but as ive said maybe its different by you but in my area thieves will do almost anything they can to get what they want so in my eyes extra small precautions are just a good thing.

perfect example woman down the road from me last week has a ford fiesta st now i know these are getting robbed at an alarming rate but she had it on her drive with a wheel lock a steering lock immobiliser and her keys in a faraday pouch and it still got robbed.

The easiest method is simply to have a killswitch for the fuel tank lift pump, it's under the back seat and easy to do, without the pump the car will not run.

17 hours ago, sepulchrave said:

The easiest method is simply to have a killswitch for the fuel tank lift pump, it's under the back seat and easy to do, without the pump the car will not run.

That's what I was thinking  of doing just splice a switch into the blue feed wire to stop the flow of power to the pump so this would do the job then yes ???

YES

Putting the switch in the thick brown earth wire would work just as well.

Edited 9 June, 20223 yr by Pete_Ex-Wino

OK thankyou all.

both cars done now so yet a bit more added security thanks to all as always

On 07/06/2022 at 19:04, Breezy_Pete said:

Download the fifth pdf in the list you'll find here https://www.briskoda.net/forums/files/file/76-mk1-fabia-workshop-manuals/

It's the circuits for early Fabias. Relay info specific to your engine code is probably findable by searching the pdf for AQW. Other relays may be listed near the end with fuse info.

 

is there any similar for the Octavia 1u?.