[Theblackstig]

Do we know if the OVMS system has a sleep system or does it keep Canbus awake? I have one for my ioniq 6, will start unplugging after stopping for now but curious if it is necessary.

It was keeping canbus awake and keeping the factory head unit on (nothing was displayed) but it would obviously more power than fully sleep.

 

[HKtech]

No obd2 dongle should be left in if not used.

 

[michael_1941]

No obd2 dongle should be left in if not used.

Eh? They can be very handy. On my ICE Subie I left it in all the time and I used it all the time. No problems in 3 years. I haven't done the same with my new EV, yet.

 

[SalisburySam]

No obd2 dongle should be left in if not used.

Probably good advice, but perhaps unnecessary. If the dongle shuts off some time after vehicle shut down, there should be no parasitic loss. I kept my ODB-II dongle in my 2012 Nissan LEAF for all 11 years of its life so far, taking it out only for annual vehicle inspections. No issues, but only one datapoint of course.

 

[Neutronbomb]

No obd2 dongle should be left in if not used.

I've left mine in 24/7 in my ID.4, EV6, bZ4X, and now my Ioniq 6 with no issue.

Using this one https://www.amazon.com/Veepeak-OBDC...+ios+&+android,+bluetooth+4.0+car+check+engine+light+code+reader,aps,299&sr=8-1

 

[jfutyb]

So are these safe to use if you unplugged them after use before driving? What if you want to monitoring using the odb2 dongle when you are charging overnight to check for the overheating issue, is it still an issue? will it interfere with the charging of the 12v or main battery? Does this invalidate your car warranty at all?

 

[atari800]

Safe to use if you unplug them - yes
Monitor charging overnight - no problem and good idea
Will it interfere with the 12v or main battery - no (or there would be a billion people all saying DONT DO IT)
Does it invalidate your warranty - no (and again there would be a billion people all saying DONT DO IT)

 

[jfutyb]

Thanks

 

[Mikael48]

The OBDII port is always powered up, even when the car is off. So look for good quality adapter with automatic power-off mode - such dongle will not drain the 12v battery.

 

[tarnower]

I just got a Veepeak scanner and managed to get it working with the Car Scanner app, so now it's my new toy. I'm still figuring out which sensors I should arrange on dashboard pages.

I really only got it to see if my car's AC inlet port overheats when I'm charging at 48 amps. But after seeing what else it does, I'll probably drive around with the scanner plugged in. I'll have to figure out a way to not leave it there afterwards.

 

[Dachshund Lover]

The OBDII port is always powered up, even when the car is off. So look for good quality adapter with automatic power-off mode - such dongle will not drain the 12v battery.

Actually, as I recall, the ODBII has two +12v pins, one switched with the ignition and one unswitched..so it just depends on which the dongle uses for power.

 

[Banjaboy]

So if you have been following my other threads you would know I'm pretty deep into a stereo system. I have been using OBD II dongle to watch some of the charge values and such through the tq app. Now my stereo system is dependent on the canbus system going to sleep and there is no active 12v trigger for anything. Last night I was doing some system changes upgrades and I noticed that the system was not going to sleep. This usually happens in about 10 minutes.

It took me almost 2 hours to figure out that that stupid OBD II dongle was keeping the car awake, and it was obviously an issue because immediately after I unplugged it the car started to charge the 12v System. Now this could be an issue with my own OBDII device but advise caution.

I have a wireless Apple Carplay dongle plugged into the USB port, is this a no no to leave installed? Had no issues yet.

 

[flyingdutchman]

I’ve an OBD2 reader too, and in the begining, I got to remove it after each trip. I forgot it once and I saw that it shut off after a while. Since then, I keep it in without any problem, even several days.

Only concern for me in the Ioniq 6 : if plugged, the cache that hides the fusebox can’t be put back. The dongle is to big for that. It’s the only thing.

 

[michael_1941]

I’ve an OBD2 reader too, and in the begining, I got to remove it after each trip. I forgot it once and I saw that it shut off after a while. Since then, I keep it in without any problem, even several days.

Only concern for me in the Ioniq 6 : if plugged, the cache that hides the fusebox can’t be put back. The dongle is to big for that. It’s the only thing.

I have a cheapie OBD2 reader and kept in my old subie for years. I have also used it in the Ioniq 6 for a few weeks at a time and had no problems with my 12v. But I am going to replace it with a better one because I need the BLE protocol to run ABRP in Android Auto. When I do I will make sure it has some security as well as a sleep mode because I will leave it in all the time.

 

[Dachshund Lover]

I just got a Veepeak scanner and managed to get it working with the Car Scanner app

IOS seems to have a couple of apps named Car Scanner <something>. Which one are you using?

 

[HKtech]

IOS seems to have a couple of apps named Car Scanner <something>. Which one are you using?

I would go with Android version of this app.
Any old Android phone or tablet would work just fine for as long it is Android 10 or higher.
High quality dongles are Obdlink and have regular dongle firmware updates constantly to work without hiccups or any problems.
If going to use ABRP with dongle
ABRP requires BLE type of dongle.
Obdlink CX would be your best choice for the money.
Die hard fanatics MX or MX+ this one is approved by Apple and will work with Apple phones.
I personally use MX+ and CX when looking for bugs or need for dongle firmware updates or how well it works with carscanner app.
There will be 100+ more pids coming soon for E-GMP platform ( all Hyundai brands).
I had enough of spare time to complete all necessary tasks and formulas to work on carscanner with E-GMP platform.

 

[videopete]

The OBDII port is always powered up, even when the car is off. So look for good quality adapter with automatic power-off mode - such dongle will not drain the 12v battery.

If it powers off automatically, how do i monitor the charge overnight ?

 

[Mikael48]

If it powers off automatically, how do i monitor the charge overnight ?

I would read the Cumulative Energy Charged kWh and Remaining Energy kWh before you start charging, then again in the morning. Remove the dongle for the night.