ALARM KEEPS GOING OFF! How to stop a Honda or Acura Security Alarm from going off. EASY DIY FIX!
ฝัง
- เผยแพร่เมื่อ 1 ต.ค. 2024
- Part number for the Latch: 74120-TZ5-A03 (discontinued)
Lock Assembly, Hood (Security) - Acura 74120-TZ5-A03 ( I couldn't find a link on Amazon)
amzn.to/3MX7z9w - Engine Cover Retainer Clip Compatible with Honda 91547-TZ5-A02 Honda Odyssey, Pilot & Ridgeline Acura MDX
amzn.to/3N18Tbw - Wera 6003 Joker Ratcheting Combination Wrench 10mm
amzn.to/45qHyGG - Wera - 5105650001 Kraftform Plus 334/6 Screwdriver Set with Rack and Lasertip, 6-Pieces
amzn.to/3OBUmnM - Milwaukee 2457-20 M12 Cordless 3/8" Sub-Compact 35 ft-Lbs 250 RPM Ratchet w/ Variable Speed Trigger
This is just a quick video and explanation on how I was able to solve the problem of the alarm going off on our 2017 ACURA MDX SH AWD randomly and bothering my neighbors. In our case, it was a faulty hood latch sensor. It's a very easy DIY repair and might save you a lot of headache and frustration. Many forums say that you can simply disconnect the sensor at the base of the latch, but this caused a parasitic draw on our vehicle and the battery died overnight. I ended up just disconnecting the negative battery cable to disable it completely until I was able to fix it. You might be able to bend the small metal arm of the sensor enough to fix it, but that may not last too long. In my case, I just figured it was worth replacing it with a new OEM latch so hopefully I won't have to deal with it again anytime soon. It might be a good idea to pick up some replacement plastic clips that hold the plastic engine cover in place as it's quite possible some of them will break when removing it.
Tools needed:
10mm socket and/or wrench
Thanks for watching!
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-Dan the Fix it Man
www.danthefixitman.org
www.amazon.com/shop/danthefixitman
Song used in the video:
'Last Train North' by TrackTribe
This video is intended for entertainment and informational purposes only. Any repairs you make are your responsibility. I am not liable for any damages to you or your vehicle or your property.
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2012 Acura MDX. Horn was honking for no reason. Took off the hood latch, springs, and cable, cleaned up the the whole area, used brake cleaner, and slightly modified the metal lever to push down the small plunger valve to the sensor. Reinstalled it all and all is well. Culprit, all the grease and dirt build up. With the car locked, hit the lock button again on the remote, if the front lights do not flicker, then look into cleaning the hood latch and reviewing the lever and its interaction with the sensor plunger. Job took about 35 minutes and it was basic maintenance. You can always just disconnect the sensor as another option, but this was basic maintenance and easy to do.
Outstanding explanation of the issue. The key advise was the tip on checking if the side lights were going on when locking the car. They weren’t so I was pretty confident your tips would work. I replaced the hood latch in 10 minutes. Issue resolved. Thanks Dan!
Nice video showing the complete restoration. The danger of taking the car to the dealer is a tech may decide your keyless entry module is faulty (which is typically backordered), and then blah, blah, blah... $900 and 4 weeks later your alarm goes off again, because it was really a door or hood latch sensor all along. I decided to unplug the latch sensor and jumper it with a lead off a 1/4 watt resistor. The thickness is just right to make the connection. Tape if off for waterproofing and zip tie it so it doesn't flop. Latch closed state = closed circuit. The car will always think the hood is closed and the alarm system will arm as expected. Chances are if you are watching this video, you are already the type of person who would notice if the hood wasn't shut just by walking up to the car. So all you are giving up is the hood latch idiot light and accepting the risk that some really stupid criminal is going to try to pry your hood open before they break a window to get to the interior, which is where valuable stuff is usually stowed.
Acura MDX 2017, alarm was going off, mostly at the night time driving me and my neighbours crazy. Tried the trick with sensors, didn’t help, installed the new battery - didn’t help. Sometimes the head lights were turning on a minute before the alarm sound. Paid $3,000 at Acura dealership for new “dash wiring harness”. The problem stayed the same. Send it back to the dealership, after consulting with “Acura Canada 🇨🇦” the KEYLESS ACCESS UNIT was replaced for $750 and the problem was solved. Since the last repair - no problems. Enjoying the silence. For those who got the same problem - start with the KEYLESS ACCESS UNIT replacement.
There’s a guy on TH-cam (Regina) that shows you the problem and how to fix it. It’s “dendritic growth” (dendrite) on a IC on your PCB due to manufacturer defect of the Keyless Access Control Unit. They did not completely cover the IC with “Conformal coating” to prevent the dendritic growth due to moisture. You can remove the KACU behind glove box, Inspect under a microscope/magnifier (Amazon/$30), remove growth by cleaning with alcohol swab, then cover area with “Conformal coating” (MG Chemicals 422C). I just did it and it fixed the problem. Dealership know the problem but they’ll rip you off saying it’s something else having you buy unnecessary stuff.
@@gaboidawg I was searching the Internet trying to fix the problem, but couldn’t find anything better than “a hood sensor problem”… and it cost me $3,000+ to fix(
@@gaboidawg could you please give me link for that video? Thanks
@@paulhudson3594 th-cam.com/video/i_UONy-TNDQ/w-d-xo.htmlsi=FSGxvZldQLo71D0f
@@paulhudson3594 th-cam.com/video/uTyvAWWGxz0/w-d-xo.htmlsi=LkMh6dLejruJXOd5
My 2009 Acura TL was starting to have it alarm go off all the time randomly. Often in the middle of the night. This video helped me. I just disconnected the hood switch, and although the lights don't flash, the alarm is not going off anymore. I'll replace the switch soon.
Thanks for making this video! It also generated some great comments!
Bought some engine degreaser and brake cleaner and "De-Gunked" my hood latch and sensor switch after removing it from the frame the same way as posted in this video.
My random alarm/horn hunking has STOPPED. So anyone dealing with this start at the Hood latch first before going to the Stealer-Dealership and paying them to diagnose something simple that'll take you 5-10min if you're quick.
I've been reading on forums folks were paying $165-175 for a diagnosis and the Stealership having customers replaced door sensors and key Fob control units etc.
Thank you very much. This is one of the best videos I’ve ever seen. Very informative and thorough.
Easy fix. Just bent the tab and all was good. It closed the circuit.
For some reason when locking the van Odyssey 2007 with the remote, the tail lights don't flash and doesn't beep the horn anymore
Your video is showing step by step. The best video I have ever seen. My 2018 MDX is experiencing the same problem one year after yours. I did not know how to open the engine cover until a month ago after my car was experiencing warning lights on the dashboard. A simple fix may cost you a big fix at the dealership. I just paid $2000 a few days ago for the replacing the emblem(the main or only problem) and camera(maybe not the problem). This video maybe will solve my issue without paying another $1000 at the dealership again.
A big Thanks to you!!
What if I don’t turn on the alarm? Is that a temporary fix until I get the new sensor?
gonna try this out. got a 2006 acura tl amd the battery keeps dying due to the alarm going off so frequently
2018 Acura RDX....I replaced the hood latch 6/2023 and all has been good since then. Just recently (4/2024) the alarm started sounding again. I think I'll try @SuperPabster's advice and do a cleaning and maybe modifying the way the microswitch gets activated, so it doesn't happen again. What a pain!
Ok I did as @ctrlzyx2 suggested....I bypassed the hood latch sensor with a piece of wire between the terminals of the sensor connector....put some heat shrinkable tubing over it so it won't come out, and we will see how this works out....
How is that fix holding up?
Auhhh yes😢,my 2015 honda accord keeps randomly going off..i suspect its my battery. Just had a new keyfob made and programed so not that.. 😫. Imagine living in a QUIET neighborhood and this keeps going off🤦🏾♀️☠️
I have the same problem but my lights do flash and the little beep does sound . I just noticed my rear passenger door does not show on my dashboard when it is open. I noticed it was missing the screw on the door sensor. The back of the sensor has a metal piece which with the screw it grounds it (I'm guessing). When I put the screw the door ajar came on in the dash. Now let's hope and see if that fixes the problem.
That’s great info, I hope that fixes your issue!
Acura NSX 2017, alarm keeps going off at all hours, especially at night waking people up. I have brought it to the dealership multiple times and they can’t find a problem, any advice? Thanks.
Thank you so much! This has been driving me CRAZY!!!!!!
I uninstalled the hood latch assembly, cleaned it really good, and reinstalled it. Now my "talkback" doesnt work at all when I lock it :( I adjusted the latch height a few times. 2018 Honda Accord Sport 1.5t
How much was the hood latch assembly kit?
I think I found it at an online Acura Dealer website for around $100
Great video Dan, I currently have 3 Acura's and 2 Honda's......... This helps. Thanks for the detailed video.
Clear, concise, good video thank you very much, that's out of my league though. I probably can't do that. Try some W.D. lubricant or something. Have a great day.
Did you try it? It's easier than you think or may have thought it would be.
The super cheap fix is just to unplug it. It will keep the neighbors happy while waiting on parts. Been waiting for a few years now, only issue is when it goes to the dealer they plug it back in! Least they are looking for issues!
I should mention this is on a 2012 pilot mid grade spec.
I have a 2011 mdx the alarm goes off when I lock the doors , not when unlocked, when I lock the doors the lights do flash and beep most times,so lost
I'm having the same problem with my alarm going off so I unplugged the sensor until I get the new one. After unplugging the sensor my remote starter stopped working, is it possible that unplugging the sensor is the reason my remote starter stopped working?
@@len7970 that would be my guess, possibly because it’s sensing that the hood is open and will not allow that function. You could always plug it back in for a minute and try the remote start function to confirm your suspicion…
Thank you so much I have a 2014 Honda pilot that is doing the wake up thing at inopportune moments I will be checking out the hood latch tomorrow
I have Alarm and lights going on by themselves , u knows what happen ?
How Annoying!
It really was…
Wife wanted to get rid of the car because of this…
Thanks for watching!
I have an 06 ridgeline with this issue. Sometiems when i double tap the lock button it will honk to let me know all the doors are locked and sometimes it wont. And sometimes it just goes off at random times during the night. My neighbors hate me.
How did you fix this? Same thing with me.
Having the same problem did you get yours fixed 🤔
@@terrell1201at it was my hood latch sensor
Thank you very much.
Love the video now for some Honda key programming videos😅
I hope this is the fix my daughter’s car needs!
Best of luck to you, I hope this helps.
What if it's the sensor itself? Does purchasing a new latch come with a new sensor too?
Yes, the sensor is included on the latch.
Can you assist by telling me where you ordered the hood latch assembly?
I think I got it from Acura OEM Parts Online:
acura.oempartsonline.com/oem-parts/acura-lock-assembly-hood-security-74120tz5a03
But I can't find the invoice. Hopefully they still have them in stock.
Thanks for watching!
-Dan the Fix it Man
Thank you
Can I just unplug the hood latch sensor?
Yes, on some models, but on this year of mdx you will get a warning light for the hood being open.
Thank you
💟💟💟
Is it the same on a 2006 Honda ridgeline
Yes, it should be the same basic system but the hood latch and door switches are probably different part numbers.
Best of luck with it.
Take care,
-Dan
I disconnected the plug and bypassed the switch, and put a jumper in the other end of the plug plug 2:25 plug plug
And it didn't work, the alarm that is, also I pushed down on the switch while it was connected and it still didn't work work
Dan, don't you mean the Alarm keeps going On?
Good point...
You are going to make me question everything I say now.
Sometimes I say 'tighten up' and sometimes I say 'tighten down'🙃
Good info Dan, thanks. I had an alarm issue with my '07 Accord when the battery in my key Fob died. The car's receiver wasn't getting the proper signal to unlock the doors so when I used the key, it tripped the alarm. A new battery for the key Fob fixed the problem.
Thank you, I had read that was a possibility on this car too, but I had just changed the remote batteries recently. I am just happy it’s fixed now!
Thx for watching!
@@DantheFixitMan It's interesting to me that in my situation, although I used the original factory key to unlock the door, it still triggered the alarm.