Stored car on trickle is beeping

[champamp]

I've stored my '16 GT the same way for 9 years - on a NOCO Genius trickle charger without any issues. The charger is working fine. After a few months this year the car is beeping about every minute or so. The only thing new in the past year is a Wengerd tune. Can't find anything definitive in the manual. Anyone ever have this happen?

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[Gen 6 Mach1]

Battery trickle charger?

 

[champamp]

No, beeping is coming from the car - around the dash.

 

[Mach 307]

Shot in the dark, but maybe an old tracker that’s battery finally died

 

[Mike Pfeifer]

I feel like someone else on here had a similar issue and started taking things apart only to find something aftermarket in the car.

 

[Skye]

Can you provide an audio sample of the sound?

Can you look into the interior, to see if the in-dash display is alerting something?

Are all personal electronics disconnected and removed from the car?

You've had the car for a while, stored it previous Winters in the same way. Check.

Wengerd tune. OK. (Tuning device/pod/gauge beeping?)

The car seemed to be doing well for a few months this time. I'd start by simply re-checking everything.

- Check under hood, under car and inside, for varmints bedding down and gnawing the wiring
- Confirm the connections to the battery are secure
- That the tender is working correctly
- That the car is off. That it is not in accessory mode
- Check the in-dash display for messages
- That all personal gadgets (radar detectors, handheld electronics, etc.) are removed from the car
- That the doors and trunk are secure
- That the car is locked
- You've been doing this for years, but ensure all fobs are distant from the car, preferably in Faraday pouches

If that doesn't bring about any tells...

- Put the car in accessory mode and leave it alone for about five minutes
- Then turn the car off
- Confirm tender attached, on and appears normal
- Secure and lock the car. And note the date/time

See if the beeping returns.

Edit,

It reads like you've had the car for many years. There have been examples of trackers being found. Typically, these are installed in-line with the On-Board Diagnostics (OBD) wiring, or, using vampire taps, latching onto the needed wires themselves for power and data. Dealers use them in defense of the car being stolen. But they also leave them in cars in-case the buyer begins missing payments, so they can find and reposes the car.

Wouldn't hurt to check under the dash. Taking a peak for peace of mind would take only moments.

https://www.google.com/search?q=mus...UQrQIoAnoECB4QAw&biw=1465&bih=742&dpr=2&aic=0

 

[Skye]

I feel like someone else on here had a similar issue and started taking things apart only to find something aftermarket in the car.

https://www.mustang6g.com/forums/threads/constantly-beeping-3-times.177482/

See post #1 and #20 . There are probably a few other threads of the same.

 

[sk47]

There have been examples of trackers being found. Typically, these are installed in-line with the On-Board Diagnostics (OBD) wiring, or, using vampire taps, latching onto the needed wires themselves for power and data. Dealers use them in defense of the car being stolen. But they also leave them in cars in-case the buyer begins missing payments, so they can find and reposes the car.

Hello; This is interesting and disturbing.

 

[champamp]

Can you provide an audio sample of the sound?

Can you look into the interior, to see if the in-dash display is alerting something?

Are all personal electronics disconnected and removed from the car?

You've had the car for a while, stored it previous Winters in the same way. Check.

Wengerd tune. OK. (Tuning device/pod/gauge beeping?)

The car seemed to be doing well for a few months this time. I'd start by simply re-checking everything.

- Check under hood, under car and inside, for varmints bedding down and gnawing the wiring
- Confirm the connections to the battery are secure
- That the tender is working correctly
- That the car is off. That it is not in accessory mode
- Check the in-dash display for messages
- That all personal gadgets (radar detectors, handheld electronics, etc.) are removed from the car
- That the doors and trunk are secure
- That the car is locked
- You've been doing this for years, but ensure all fobs are distant from the car, preferably in Faraday pouches

If that doesn't bring about any tells...

- Put the car in accessory mode and leave it alone for about five minutes
- Then turn the car off
- Confirm tender attached, on and appears normal
- Secure and lock the car. And note the date/time

See if the beeping returns.

Edit,

It reads like you've had the car for many years. There have been examples of trackers being found. Typically, these are installed in-line with the On-Board Diagnostics (OBD) wiring, or, using vampire taps, latching onto the needed wires themselves for power and data. Dealers use them in defense of the car being stolen. But they also leave them in cars in-case the buyer begins missing payments, so they can find and reposes the car.

Wouldn't hurt to check under the dash. Taking a peak for peace of mind would take only moments.

https://www.google.com/search?q=mus...UQrQIoAnoECB4QAw&biw=1465&bih=742&dpr=2&aic=0

If you heard the sound, you'd say "now that's a classic 'beep'. Unlike any typical alerts.
Still not seeing anything amiss.
No devices connected. Accessories off.
No indicators on dash w/ accessories on.
No sign of rodents under hood, but can't get under the car now.
Nothing at the OBD.
Fob at other end of house.
Beeps w/ doors locked and unlocked.
NOCO has monitor lights which are showing good connect.

I'll touch base with Wengerd to see if he knows anything.

 

[Unas2k5]

Even if the NOCO charger is working fine, the car can still see brief voltage dips when the charger cycles and the BCM doesn’t like it. It’ll wake up, chime, go back to sleep, then repeat every minute or so. A tune like Wengerd’s usually isn’t the cause, but it can expose a borderline battery or keep modules from going fully asleep. I’d bet the battery is aging or the car isn’t entering deep sleep. I’ve also seen hood latch or door ajar switches cause similar ghost beeps, especially in cold weather. Try unplugging the charger overnight or fully charging the battery off the car if it stops, that’s your answer.

 

[Unas2k5]

The Wengert tune can change the vehicles sleep behavior. Let’s see what an expert thinks @engineermike

 

[engineermike]

The Wengert tune can change the vehicles sleep behavior. Let’s see what an expert thinks @engineermike

I don't know about all that "expert" stuff, but I did a quick check in PCMTec. "Sleep" is only mentioned 3 times and it's related to transmission shifting. However, "Key off" shows up in 22 parameters. I'm curious, what is Wengerd changing in sleep?

 

[Unas2k5]

I don't know about all that "expert" stuff, but I did a quick check in PCMTec. "Sleep" is only mentioned 3 times and it's related to transmission shifting. However, "Key off" shows up in 22 parameters. I'm curious, what is Wengerd changing in sleep?

Sorry, I might be mixing terms here, but when I mentioned “sleep” I wasn’t thinking of a literal sleep parameter. I was thinking more along the lines of key-off behavior and whether the car is fully settling down after shutdown. I remember reading that if something keeps CAN activity alive after key-off, modules can keep waking up, which could explain the periodic beeps. Do tuners ever touch anything that could indirectly affect that? Sounds like it’s less likely tune related lol

 

[champamp]

Derel says not tune related. It's an older battery so I'll replace it and see what happens. Seems like the most likely thing.

 

[Unas2k5]

Derel says not tune related. It's an older battery so I'll replace it and see what happens. Seems like the most likely thing.

Makes sense keep us updated. I think you’ll be fine.

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