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| Ramsay Member Since: 30 Sep 2015 Location: Moffat, Dumfries & Galloway Posts: 629   
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Do the indicators work on the switch? Short inside there can take out feed to the immobiliser. 1995 Defender 110 CSW
1971 SIIA Lightweight |
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23rd Jun 2020 6:58am |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769  
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Are you sure the fuses are good? I had a similar situation except on mine the immobiliser didn’t kick in, the alarm wouldn’t arm or disarm, I’d checked the fuses and every connection, changed battery’s in the fob a few times and even bought a new alarm ecu ready to swap. I decided to just have one last look around everything before I paid for reprogramming the new ecu and found one of the fuses had the slightest crack that you couldn’t actually see and I only found it after using an electrical tester across all the fuses. Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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23rd Jun 2020 9:17am |
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| ginjez Member Since: 18 Sep 2011 Location: huddersfield Posts: 1763 
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Stripped out the 10AS box tonight and rechecked fuses and still nothing but when i plugged box back in the alarm triggered. Purely by chance I had the fob next to the box and when I pressed the fob the alarm stopped. Long story short there is something jamming the signal as the fob works fine when the vehicle is away from home.
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23rd Jun 2020 8:41pm |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769
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That’s very odd! Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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23rd Jun 2020 9:59pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17482  
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Not that unusual actually. I had months of trouble with my Disco 2 when the county plod went live with Airwave, it would start perfectly everywhere except on my drive. Eventually I borrowed some kit from work which suggested a malfunctioning tetra cell was the problem. One email to Hutchison who ran the network (and who said it couldn't possibly be their network) and the problem disappeared.
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23rd Jun 2020 10:22pm |
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5865 
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Batteries in the fob going flat? 1999 Defender TD5 110
Regards John M0VAZ Econet Station 48 no clock |
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24th Jun 2020 7:52am |
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| Balvaig Member Since: 19 Feb 2016 Location: Fife Posts: 732 
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As above, check your fob batteries.
If the fob works close to the 10AS box, check that the aerial is attached and the wire is intact along its length |
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24th Jun 2020 7:55am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17482
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If it is a geographical problem and occurs only on your drive it will be an interference problem and may be extremely local, moving the vehicle as little as 20 feet may make a difference.
Have you extended the aerial for the 10AS? If so, you may even find that undoing the modification may help, since it de-sensitises the receiver. If it is an interference problem it may, unfortunately be very hard to resolve. Look for strange antennae in your neighbourhood which may indicate the presence of cellular comms, Tetra, Airwave, etc., since a malfunctioning cell can cause this. Do you have any radio hams nearby? This kind of interference affecting UK car access systems is a reasonably widespread and known phenomenon. With my Disco 2 it was a real PITA since the procedure to use the EKA to enter a Disco 2 and de-immobilise it without the fob is time-consuming and involves standing outside the car for several minutes but for a very precise period of time. An absolute sod when it is raining hard! |
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24th Jun 2020 8:03am |
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| ginjez Member Since: 18 Sep 2011 Location: huddersfield Posts: 1763
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Thanks for the replies. At the moment everything has gone back to normal but I will be asking around to see if anyone has recently bought some electronic devices that emit a radio signal.
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24th Jun 2020 5:13pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17482
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The fact that it's suddenly working again also suggests an RFI problem. Hopefully whoever was causing it has fixed the problem and it won't recur.
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24th Jun 2020 6:35pm |
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