Garmin brand car adapter VS 3rd party

[yogazoo]

As of today, regular USB car adapters push the Colorado into USB mode unless you have a "Garmin" brand appearantly. Well, I'm curious as to what the pinouts are for the "Garmin brand and how they differ from the 3rd party adapters many of us have. There are only 5 pins in the unit end. Something tells the unit that its connected to a 3rd party cord. What is that something?

 

Lets call it a work around until Garmin issues a fix.

 

I'l get to work pinning out the regular USB Car adapters and post in a few.

 

Anyone willing to pin out the Garmin Brand?

[+apersson850]

I don't remember exactly, as it was a long time ago I learned about this (for the c550, then), but it has something to do with if a certain pin is connected to GND/5 VDC (whichever it was) or not. At least it had then.

 

Not very precise, I know, but maybe a clue?

[+g-o-cashers]

I don't remember exactly, as it was a long time ago I learned about this (for the c550, then), but it has something to do with if a certain pin is connected to GND/5 VDC (whichever it was) or not. At least it had then.

 

Not very precise, I know, but maybe a clue?

 

That would be Pin X as some of the pinouts call it. Mini USB is pretty simple. Power, ground, 2 data pins and the X pin. I'm sure it has to do with the strapping of pin X to gnd vs nothing unless Garmin is doing something really fancy.

 

I asked Garmin about this a few days ago and they wouldn't share this information since they claimed it is proprietary.

 

GO$Rs

[+Goodguys]

That same pinout site mentioned above has a Garmin Nuvi pinout described here:

http://pinouts.ru/GPS/garmin_nuvi_power_pinout.shtml

It says to connect pin X to ground through a 17.3 k ohm resistor.

I've bought the resistor, and will be modifying a cable soon for my new Nuvi.

[+coggins]

That same pinout site mentioned above has a Garmin Nuvi pinout described here:

http://pinouts.ru/GPS/garmin_nuvi_power_pinout.shtml

It says to connect pin X to ground through a 17.3 k ohm resistor.

I've bought the resistor, and will be modifying a cable soon for my new Nuvi.

Also note that the 17.3 k ohm resistor jumpped between pin x and pin 4 places the Nuvi in charging mode... Is this what you are looking for on the CO?

[+g-o-cashers]

That same pinout site mentioned above has a Garmin Nuvi pinout described here:

http://pinouts.ru/GPS/garmin_nuvi_power_pinout.shtml

It says to connect pin X to ground through a 17.3 k ohm resistor.

I've bought the resistor, and will be modifying a cable soon for my new Nuvi.

 

I'm guessing you'll find that a cable without pin X grounded behaves one way (USB drive mode) and grounded the other (GPS mode) or visa-versa.

 

If you find out please share and I'll add it to the FAQ

 

GO$Rs