kit #3, OBD-2 "UNABLE TO CONNECT"

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guanlelennon
Posts: 3
Joined: Tue Mar 08, 2016 1:36 pm

kit #3, OBD-2 "UNABLE TO CONNECT"

Post by guanlelennon »

Hi there,

I bought a kit#3 with UBX-G6010 and IIC adaptor. When I plug it into my 2007 infiniti, the LCD shows that the OBD-2 command cannot be sent (UNABLE TO CONNECT) and GPS fails to recognize. MEMS seems to work fine.

Attached is the screen I took.
Could anybody help me?

Thanks in advance.

Le Guan
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stanley
Site Admin
Posts: 1018
Joined: Sat Mar 01, 2014 3:15 am

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by stanley »

What car? Is GPS baudrate correct (in config.h)?
guanlelennon
Posts: 3
Joined: Tue Mar 08, 2016 1:36 pm

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by guanlelennon »

Hi Stanley,
Thanks for your kind reply.

My car model is 2007 infiniti g35x.
The baudrate is set as default, which is 115200 bps.
Here is the GPS configuration:
#define USE_GPS 1
#define GPSUART Serial2
#define MAX_GPS_PROCESS_TIME 50
#define GPS_DATA_TIMEOUT 2000
#define GPS_BAUDRATE 115200

Attached please find the picture showing the wiring of device, as well as the model of the used GPS. OBD-2 adaptor is plugged in IIC interface and GPS is plugged in UART2, which is in the middle.

Thanks again.

Le Guan
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mpforum
Posts: 3
Joined: Thu Feb 04, 2016 5:36 pm

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by mpforum »

I'm also having the same problem so am keen to see what the story is.
guanlelennon
Posts: 3
Joined: Tue Mar 08, 2016 1:36 pm

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by guanlelennon »

mpforum wrote:I'm also having the same problem so am keen to see what the story is.


Have you solved the problem? Could you share your experience with me?
stanley
Site Admin
Posts: 1018
Joined: Sat Mar 01, 2014 3:15 am

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by stanley »

I used to have a 2007 infiniti g35. I found its OBD-II is not very compliant. Have you tried on any other cars?

guanlelennon wrote:Hi Stanley,
Thanks for your kind reply.

My car model is 2007 infiniti g35x.
Le Guan
protomor
Posts: 99
Joined: Wed Oct 14, 2015 9:17 am

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by protomor »

Why are some of these posts blank? Did this get resolved? I'm having the exact same issue with the exact same setup.
ghelbig
Posts: 1
Joined: Sat Jan 07, 2017 6:42 am

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by ghelbig »

I too have exactly the same problem.

Wire it up, turn it on, it displays "UNABLE TO CONNECT" three times - a light in the OBD-II adapter flashes just before each message.

It then goes to the (dead) main screen, waits a couple of seconds, then turns the screen off.

Please help?
stanley
Site Admin
Posts: 1018
Joined: Sat Mar 01, 2014 3:15 am

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by stanley »

Infinit G35 2007 does not use a protocol that our adapter supports.
protomor
Posts: 99
Joined: Wed Oct 14, 2015 9:17 am

Re: kit #3, OBD-2 "UNABLE TO CONNECT"

Post by protomor »

What protocol does it use? I wish there was a simple way to lookup what cars have what protocols. Googling around seems to come up with mixed results for every car I look at. My 2007 subaru for instance didn't work with the auto select. But if I force the right protocol (PROTO_KWP2000_FAST), it works perfectly fine.
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