Replacing NissanConnectEV with OVMS in a Gen1 Leaf

[R1200RT]

Here it is installed on my 2013 SL. I'll eventually move it to behind the glove box. But it works for now under the steering column. I mainly need to make sure I have enough OBDII cable to route behind the HVAC to move it behind the glove box.

https://photos.app.goo.gl/TbENqPm5KLhn92Pq6

[Olsonist]

Has anyone succeeded at using the original TCU GSM antenna for the OVMS?

There's a thread on OVMS.

https://www.openvehicles.com/node/2435

They used to make this cable in Japan.

https://www.amazon.co.jp/-/en/Antenna-E ... 00WYTNT44/

Probably the only off the shelf no solder solution would be two connector cables, GT16 male on one end of one and SMA male on the other end of the other with some sort of common male/female in between.

[Stanton]

Has anyone succeeded at using the original TCU GSM antenna for the OVMS?

There's a thread on OVMS.

https://www.openvehicles.com/node/2435

They used to make this cable in Japan.

https://www.amazon.co.jp/-/en/Antenna-E ... 00WYTNT44/

Probably the only off the shelf no solder solution would be two connector cables, GT16 male on one end of one and SMA male on the other end of the other with some sort of common male/female in between.

I tried...but was unsuccessful in making the adapter cable (I wish you could buy the one in the Amazon link provided).
Bottom line: it is absolutely possible...if you can make/acquire the adapter cable you described. Until then, I am using a separate GSM antenna.

[Olsonist]

I don't solder but what problems did you have constructing this cable?

In any case, I found someone in Shenzhen on Alibaba who makes these cables. She didn't have the male GT16 part because seriously, this is about the ONLY cable that uses the male GT16 part. Otherwise she would have made one for me.

But we could do a group buy so that she could order the male GT16 parts from a Hirose distributor. I'd be willing to front this. There may be other cars on the OVMS list who could use this.

How long should such a cable be? For LHD cars, if you put the OVMS behind the glove box it could be short. But that would require running CAN back to the glove box, no? Or it could be closer to a meter if you zip tie it on the other side. Dunno about RHD. Could you coil up a meter cable if you still wanted it in the glove box?



Search for 28212-3NA0A on EBay to see what the part looks like. BTW, the GPS antenna is a separate antenna, also behind the instrument panel. Look for 25975-3NA0A on EBay to see what it looks like.

[Stanton]

I don't solder but what problems did you have constructing this cable?

In any case, I found someone in Shenzhen on Alibaba who makes these cables. She didn't have the male GT16 part because seriously, this is about the ONLY cable that uses the male GT16 part. Otherwise she would have made one for me.

No soldering required (I can do that); the problem is the crimping tool/parts that are required. I started with an SMA cable (on one end); I have a parts list (from Mouser Electronics). These are (relatively) cheap parts, so money isn't the problem.
I'm open to further discussion.

[Joaozinho]

Just to make sure before I pull the trigger on the hardware... I've got a Sept 2013 build date, SV. If I get the modem and disconnect the TCU (and make the mods) I'll be able to run the climate control remotely without being plugged in?

Correct...except you shouldn't have to make any "mods" if you have a AZE0 model.
The OVMS docs for the Leaf have been updated here https://docs.openvehicles.com/en/latest ... index.html. Also make sure you read through the "notes" (like #4).

Just trying to make sure that I understand...I would be fine without the modem and SIM. I have a 2015 S that should be in easy WiFi range at home, so I would need only:

1) The Japanese base kit ($180) and
2) Leaf cable ($12),

correct?

And I wouldn't need any connection to any antenna if I limit myself to WiFi?

[Stanton]

Just trying to make sure that I understand...I would be fine without the modem and SIM. I have a 2015 S that should be in easy WiFi range at home, so I would need only:

1) The Japanese base kit ($180) and
2) Leaf cable ($12),

correct?

And I wouldn't need any connection to any antenna if I limit myself to WiFi?

Everything you said is correct...if you can do it with an "S" trim. For some reason I thought you could only do this if the car originally had a TCU (which the "S" did not). I initially used mine exclusively on WiFi while waiting for the 4G modem to come out.

[Joaozinho]

Everything you said is correct...if you can do it with an "S" trim. For some reason I thought you could only do this if the car originally had a TCU (which the "S" did not). I initially used mine exclusively on WiFi while waiting for the 4G modem to come out.

I'm back to being puzzled. The Leaf page at openvehicles.com simply says: "OVMS currently supports 2011-2017 Nissan LEAF..."

The only mentions I see for S trim are the benefits of having no TCU to disconnect. Am I missing something?

[Stanton]

Can't answer that question unless/until someone verifies they have installed OVMS in an "S" trim Leaf.

[Joaozinho]

Can't answer that question unless/until someone verifies they have installed OVMS in an "S" trim Leaf.

Got it. Dala@Dala's EV Repair claims to have done so in the middle of this Reddit thread:

https://www.reddit.com/r/leaf/comments/ ... loving_it/

But that's the only one I have found.