OBDII

Faults and Technical chat for the Honda E
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londiniumperson
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Post by londiniumperson » Thu Sep 03, 2020 5:43 pm

I tried a couple to OBD bluetooth adaptors and I couldn't connect to the car systems at all using them.
I reached out to OBDLink from whom I have paid for a secure ODB adaptor and this was there reply:
The OBDLink app, by default, only connects to OBD-II (emissions related) data. Because electric vehicles are not required to be follow OBD-II legislation, the OBDLink app likely will not connect to your Honda if it is a electric vehicle.

I am not aware of any apps made specifically for Honda Electric vehicles, so my best recommendation would be to visit a forum for your specific vehicle to see if users can recommend an app or software that can connect with your vehicle.

I am sorry that I am not able to provide a better answer at this time.
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Reuben80
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Post by Reuben80 » Fri Sep 04, 2020 5:16 am

You need an app. The best is Torque Pro in my opinion but unless we get the Honda e extended PIDs we won't be able to get all the main important data. Honda's extended PIDs are not public and that is the problem. Toyota's PIDs are made public and I can get all the data on my Toyota.
It's a pity, I really want Honda's PIDs. Or else if there is a genius and make an app specific for Honda e that would be great.

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milligoon
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Post by milligoon » Fri Sep 04, 2020 5:41 am

I think one of us will possibly have to work in cooperation with these guys.

https://shop.openenergymonitor.com/ovms/

To help develope the Honda data access.

Or if any of you have it you could try torquescan plugin to torque pro to see what it finds?
Last edited by milligoon on Fri Sep 04, 2020 6:53 am, edited 1 time in total.
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Reuben80
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Post by Reuben80 » Fri Sep 04, 2020 6:33 am

milligoon wrote:
Fri Sep 04, 2020 5:41 am
I think one of us will possibly have to work in cooperation with these guys.

https://shop.openenergymonitor.com/ovms/

To help develope the Honda data access.

Or if any of you have it you could try torquescan plugin to tourwue pro to see what it finds?
It is the same thing, no Honda car supported because extended PIDs for Honda are not known.
I tried Torque scan but it does not work, or at least you have to guess the data that it finds so it is useless.

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londiniumperson
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Post by londiniumperson » Fri Sep 04, 2020 7:10 am

As our friends from OBDLink stated, EVs are not required to be follow OBD-II legislation and there are currently no mobile apps that can communicate to the car.
Also as I've mentioned I tried a number of dongles. I also tried several mobile apps but no dice.

It will be a long time before OVMS gets anywhere with the Honda because in around 12 months with the MG ZS EV, they are now able to capture data but have yet to decode it.
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Jeffers
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Post by Jeffers » Fri Sep 04, 2020 8:11 am

If anyone can be bothered, can sniffing will allow you to work out the pids but it’s a time consuming process
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Reuben80
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Post by Reuben80 » Fri Sep 04, 2020 9:01 am

londiniumperson wrote:
Fri Sep 04, 2020 7:10 am
As our friends from OBDLink stated, EVs are not required to be follow OBD-II legislation and there are currently no mobile apps that can communicate to the car.
Also as I've mentioned I tried a number of dongles. I also tried several mobile apps but no dice.

It will be a long time before OVMS gets anywhere with the Honda because in around 12 months with the MG ZS EV, they are now able to capture data but have yet to decode it.
Dongles work with EVs, but will get only the standard data like speed km/h and some basic data that are not interesting. It is the PIDs that we need.
For example Hyundai/Kia, Nissan Leaf, Tesla, they are all EVs and their PIDs are known so they get all the data that they need with the OBD dongle.
Try Torque lite and you should be able to get speed.

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Reuben80
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Post by Reuben80 » Fri Sep 04, 2020 9:04 am

Jeffers wrote:
Fri Sep 04, 2020 8:11 am
If anyone can be bothered, can sniffing will allow you to work out the pids but it’s a time consuming process
I will check about Can Sniffing when I have some time but I think it is the same as Torque scan, you need to guess the data that you get because it will not be labelled.

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londiniumperson
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Post by londiniumperson » Fri Sep 04, 2020 9:25 am

Reuben80 wrote:
Fri Sep 04, 2020 9:01 am
londiniumperson wrote:
Fri Sep 04, 2020 7:10 am
As our friends from OBDLink stated, EVs are not required to be follow OBD-II legislation and there are currently no mobile apps that can communicate to the car.
Also as I've mentioned I tried a number of dongles. I also tried several mobile apps but no dice.

It will be a long time before OVMS gets anywhere with the Honda because in around 12 months with the MG ZS EV, they are now able to capture data but have yet to decode it.
Dongles work with EVs, but will get only the standard data like speed km/h and some basic data that are not interesting. It is the PIDs that we need.
For example Hyundai/Kia, Nissan Leaf, Tesla, they are all EVs and their PIDs are known so they get all the data that they need with the OBD dongle.
Try Torque lite and you should be able to get speed.
I'll leave this with you seeing as you don't believe me.
I await with bated breath for your response showing OBD data from the Honda e.

I'm truly interested in your background, whether professionally (i.e. paid) or just as an interest/hobby that has any bearing on this or cars in general.
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Jeffers
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Post by Jeffers » Fri Sep 04, 2020 11:20 am

Reuben80 wrote:
Fri Sep 04, 2020 9:04 am
Jeffers wrote:
Fri Sep 04, 2020 8:11 am
If anyone can be bothered, can sniffing will allow you to work out the pids but it’s a time consuming process
I will check about Can Sniffing when I have some time but I think it is the same as Torque scan, you need to guess the data that you get because it will not be labelled.
It’s a very laborious process. If you take it one address at a time and change as many things as you can while watching the output to see what makes a change (some outputs change on their own every second or so as a signal to prove its existence), you can then try and work out the range of the outputs for each address, and what causes that change. It’s obviously more complex than this brief explanation, but if you have the time and inclination, your results will be most appreciated.

One thing that may cause an issue is which can line is accessible by the obd port. To access some functions in some cars requires tapping into a separate can line between ecu’s, say pcm and bcm or whatever Honda calls them. The really interesting stuff may only be accessible this way.
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