John_K Posted March 4, 2021 Author Report Share Posted March 4, 2021 14 minutes ago, Dave G said: Just to add to this thread, my alarm still continued to go off randomly so I bought a new battery hoping for silence. I was still on the original battery (it's 7 years old) and even after a charge and condition cycle from my new battery charger it was still sounding sluggish on start up. So, hoping to kill two birds with one stone... Sadly, only one bird was terminated. The car springs in to life but the alarm still went off... So for me, a new battery didn't solve it. However, I think I might have found the problem... More soon when I'm more confident and have have something useful to share! Fingers crossed... 🤞 ooh, looking forward to your theory... mine has been silent for a while now, but i have a new theory...feel free to use a search engine with the words "OFCOM Tesco's Royston"... Quote Black Pearl 2010 (60) 370Z Auto GT Pack Connect Premium - 'Cool Dad' EBC Ultimax (slotted) front discs and Ferodo DS2500 front pads - auf wiedersehen pet Storm White 2014 (64) 370Z Nismo #376 - the new 'Cool Dad' GT-R Brake Fluid II Link to comment Share on other sites More sharing options...
Dave G Posted March 4, 2021 Report Share Posted March 4, 2021 1 hour ago, Loadmaster said: What brand and ampere battery did you install Dave? Physically the battery looks tiny and I think mine is 50 something amperes - doesn't seem a lot considering the big lump of a V6 it pushes into life. The one in my 540 (4.4 V8, granted) is about 96 amperes. The battery in mine is original, so only three and a bit years old, but I may change it at four/five years as preventative maintenence seeing as a significant portion of outings in the Z are short-ish runs, so lots of starts. Hey Loadmaster Bit of a thread hijack, but figured it could be related to someone else's alarm. I changed the battery for a Bosch 70Ah, here's the link where I got it from: https://www.tayna.co.uk/car-batteries/bosch/s4026/ My original was 75Ah. Your 50Ah sounds a bit low... I used the great write up on here to help me out (credit to Chubbs). Only took 20 mins or so start to finish, including resetting the window drop. Dave 1 Quote Link to comment Share on other sites More sharing options...
Dave G Posted March 4, 2021 Report Share Posted March 4, 2021 1 hour ago, John_K said: ooh, looking forward to your theory... mine has been silent for a while now, but i have a new theory...feel free to use a search engine with the words "OFCOM Tesco's Royston"... Ooh, that's odd. There was something on the TV a short while ago where someone was using an ancient CRT TV in a village which was knocking out everyone's broadband. When he switch on, every one else went off! You thinking you have something similar? As for my theory, I hate to jinx it, but I've gone nearly 2 weeks without the alarm going off which in recent months, is unheard of (see what I did there! 😆 ). I'm waiting for the postman to bring me some goodies (hopefully today or tomorrow) and I'll have a go at the 'fix' this weekend... I'll then give it a week or two and if still silent, share what I did. Quote Link to comment Share on other sites More sharing options...
John_K Posted March 4, 2021 Author Report Share Posted March 4, 2021 52 minutes ago, Dave G said: Ooh, that's odd. There was something on the TV a short while ago where someone was using an ancient CRT TV in a village which was knocking out everyone's broadband. When he switch on, every one else went off! You thinking you have something similar? As for my theory, I hate to jinx it, but I've gone nearly 2 weeks without the alarm going off which in recent months, is unheard of (see what I did there! 😆 ). I'm waiting for the postman to bring me some goodies (hopefully today or tomorrow) and I'll have a go at the 'fix' this weekend... I'll then give it a week or two and if still silent, share what I did. I live within 100m of a major mobile telephone aerial site... My neighbours (multiple) have recently self installed Ring doorbells, which i think they have networked...if so, the signals would cross my drive! At least if they complain about the alarm going off (they wouldn't, cos we all get on), i can use their doorbells as a possible reason 🤣 Quote Black Pearl 2010 (60) 370Z Auto GT Pack Connect Premium - 'Cool Dad' EBC Ultimax (slotted) front discs and Ferodo DS2500 front pads - auf wiedersehen pet Storm White 2014 (64) 370Z Nismo #376 - the new 'Cool Dad' GT-R Brake Fluid II Link to comment Share on other sites More sharing options...
Paul_S Posted March 13, 2021 Report Share Posted March 13, 2021 On 3/4/2021 at 2:24 PM, John_K said: I live within 100m of a major mobile telephone aerial site... My neighbours (multiple) have recently self installed Ring doorbells, which i think they have networked...if so, the signals would cross my drive! At least if they complain about the alarm going off (they wouldn't, cos we all get on), i can use their doorbells as a possible reason 🤣 Ring doorbells? I quite like the idea of something like that but I wouldn't go for Ring. Not exactly the most secure... Quote 'A standard limited edition Yellow 370Z* with a plethora of minor bespoke mods' *one of 40 don't you know! WARNING - DO NOT TRUST NavTool WITH YOUR MONEY Link to comment Share on other sites More sharing options...
MattUk Posted May 25 Report Share Posted May 25 On 3/4/2021 at 1:20 PM, Dave G said: Ooh, that's odd. There was something on the TV a short while ago where someone was using an ancient CRT TV in a village which was knocking out everyone's broadband. When he switch on, every one else went off! You thinking you have something similar? As for my theory, I hate to jinx it, but I've gone nearly 2 weeks without the alarm going off which in recent months, is unheard of (see what I did there! 😆 ). I'm waiting for the postman to bring me some goodies (hopefully today or tomorrow) and I'll have a go at the 'fix' this weekend... I'll then give it a week or two and if still silent, share what I did. Did you get to the bottom of this? Quote Link to comment Share on other sites More sharing options...
Dave G Posted May 25 Report Share Posted May 25 6 hours ago, MattUk said: Did you get to the bottom of this? Hi Matt Yeah I did fix it. As you can see, I never got round to writing up what I did though. You having a problem??? Dave Quote Link to comment Share on other sites More sharing options...
MattUk Posted May 25 Report Share Posted May 25 21 minutes ago, Dave G said: Hi Matt Yeah I did fix it. As you can see, I never got round to writing up what I did though. You having a problem??? Dave Yeah car alarm going off all night - it’s had a new oem battery in this year too! It’s not gone off all day just last night every 10 mins after I armed it / reset / rearm. neighbours will be cursing me Quote Link to comment Share on other sites More sharing options...
Jeff-W Posted May 25 Report Share Posted May 25 3 hours ago, Dave G said: Hi Matt Yeah I did fix it. As you can see, I never got round to writing up what I did though. You having a problem??? Dave We wait with baited breath for the write up ….. Quote Fred I - 350Z 2007 Gunmetal. 6 CD changer, full leather, reverse sensors. SOLD. Fred II - 370Z GT 2011 Gunmetal. Premium connect. GT spec. Seriously un-modified. See-through windows, and a wheel at each corner. Sold 13 July 14. Gone. Fred III - 2014 facelift 370GT. Magma red. Reversing sensors. Invidia Gemini CBE. Sold 2 April 2016. Fred IV - 2016 Daytona Blue 370Z GT. Reversing sensors. K & N panel filters. Invidia Gemini CBE. Full front wrap - Ventureshield II. Sold 23 Mar 23. Billy – 2022 Jaguar F-Type R 575PS. Portofino blue. Front ppf and full ceramic finish. Link to comment Share on other sites More sharing options...
Dave G Posted May 26 Report Share Posted May 26 21 hours ago, MattUk said: Yeah car alarm going off all night - it’s had a new oem battery in this year too! It’s not gone off all day just last night every 10 mins after I armed it / reset / rearm. neighbours will be cursing me I literally had the same thing, only seemed to happen at night or in the damp. I just looked back at my 'How to' write up that I started and it doesn't look like I got very far 🙄 But, knowing a fellow Zed owner is suffering, I'll get it written up. Here is a summary of my problem with temporary solution... So my alarm was going off a lot, mostly at night or when the conditions were damp. I search all over this forum and on the net but nothing conclusive on why it seemed to go off in those conditions. I checked for spiders in all manner of locations, I tried disabling the interior sensor and closing the air vents but no improvement. I installed a new battery, it still went off. I bought moisture absorbing bags but no joy (though they are actually very useful and are keeping things nice and dry). I stumbled across a thread from a 350 owner who had issues with their bonnet sensors (the sensor that detects if your bonnet is opened when locked up, not anything to do with the pop-up pedestrian safety system), so I investigated this next. The sensor (there’s only one) is well hidden as I’d tried to find it before but thought that it must have been a USA thing. However, UK cars also have the sensor. It’s located on the front RHS of the car (when viewed from the drivers seat) and is mounted to the RHS bonnet release mechanism (LHS as you stand at the bonnet to open it). After retrieving and testing the sensor for changes in continuity, it was clear that my bonnet sensor was not working at all. I had an open circuit when the switch was both pressed and released. I reconnected the sensor and tested it in situ by locking the car and then pressing the microswitch with a screwdriver. Nothing, no alarm. Next, I disconnected the sensor, locked the car again and carefully shorted the terminals on the harness side (simulating the bonnet being opened when the car is locked) and the alarm went off. So, it told me that the switch is normally open when the bonnet is closed and also that my switch was buggered. So, I simply unplugged the sensor (simulating a permanently closed bonnet) to silence the alarm. Bliss, no more being woken up at 2am!!! It did mean that my bonnet was not being monitored by my alarm but so be it for now. I'll put some pics up to help you locate and unplug it to see if you're having the same problem... 1 Quote Link to comment Share on other sites More sharing options...
Dave G Posted May 26 Report Share Posted May 26 You need to get the trim off the front of the open bonnet, remove the pop rivet things and then lift up the bumper plastics since the trim has vertical posts holding it in place, this helps you slide out the trim without having to take the bumper off You need to remove the above trim. The microswitch is attached to the bonnet release mechanism (you don't need to remove the mechanism for now, the below pic is just FYI). For now, unplug the microswitch it and wrap both ends of the open connectors to stop any water ingress For me, this is where I left it for a couple of weeks to see if it made any difference (it did - well chuffed!). See if this helps you. In the meantime. I'll write up how I changed the switch and got the bonnet being monitored for tampering again in case this is also your issue. Hope this helps - I feel your pain!!! Dave Quote Link to comment Share on other sites More sharing options...
Dave G Posted May 26 Report Share Posted May 26 Goes without saying, but let me know how you get on! Quote Link to comment Share on other sites More sharing options...
MattUk Posted May 27 Report Share Posted May 27 On 5/26/2023 at 1:02 PM, Dave G said: Goes without saying, but let me know how you get on! Thank you very much for taking the time to do this for me I appreciate it! will check it out tomorrow - I pressed that button behind the passenger side and it hasn’t gone off since. but obviously I can’t keep doing that forever Quote Link to comment Share on other sites More sharing options...
Jeff-W Posted May 28 Report Share Posted May 28 18 hours ago, MattUk said: Thank you very much for taking the time to do this for me I appreciate it! will check it out tomorrow - I pressed that button behind the passenger side and it hasn’t gone off since. but obviously I can’t keep doing that forever Yes, a big thanks to Dave G; the forum remains a valuable trove of Zed facts and “how-to”s. Quote Fred I - 350Z 2007 Gunmetal. 6 CD changer, full leather, reverse sensors. SOLD. Fred II - 370Z GT 2011 Gunmetal. Premium connect. GT spec. Seriously un-modified. See-through windows, and a wheel at each corner. Sold 13 July 14. Gone. Fred III - 2014 facelift 370GT. Magma red. Reversing sensors. Invidia Gemini CBE. Sold 2 April 2016. Fred IV - 2016 Daytona Blue 370Z GT. Reversing sensors. K & N panel filters. Invidia Gemini CBE. Full front wrap - Ventureshield II. Sold 23 Mar 23. Billy – 2022 Jaguar F-Type R 575PS. Portofino blue. Front ppf and full ceramic finish. Link to comment Share on other sites More sharing options...
Dave G Posted May 30 Report Share Posted May 30 On 5/27/2023 at 8:32 PM, MattUk said: Thank you very much for taking the time to do this for me I appreciate it! will check it out tomorrow - I pressed that button behind the passenger side and it hasn’t gone off since. but obviously I can’t keep doing that forever No worries. I also tried the button behond the passenger seat but it didn't help as from memory, that only disables the inside (sonic?) sensors which for me had no bearing on my bonnet sensor. I hope you had a peaceful weekend... Quote Link to comment Share on other sites More sharing options...
Dave G Posted May 30 Report Share Posted May 30 On 5/28/2023 at 2:46 PM, Jeff-W said: Yes, a big thanks to Dave G; the forum remains a valuable trove of Zed facts and “how-to”s. Happy to help. I took a load of photos as I was doing the fix with a view to writing up a proper How-To at some point. So, more to come with a more complete start to end fix. If it is indeed Matt's problem, then it will accelerate my progress (from none to some!) Quote Link to comment Share on other sites More sharing options...
Dave G Posted June 4 Report Share Posted June 4 On 5/27/2023 at 8:32 PM, MattUk said: Thank you very much for taking the time to do this for me I appreciate it! will check it out tomorrow - I pressed that button behind the passenger side and it hasn’t gone off since. but obviously I can’t keep doing that forever How are you getting on Matt? Have you managed to tame your troublesome alarm??? Quote Link to comment Share on other sites More sharing options...
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