5 pin mini-USB plug connector at GPS unit.
Wiring diagram pinout to place Garmin Nuvi GPS in recharge mode.
|1||+5V||5 volts DC|
|2||data||not connected / float|
|3||data||not connected / float|
|X||GND||connected to pin 4 (GND) with 17.3K ohm resistor|
- Standard 5 pin mini-USB connector has pin X connected to ground through a 200K ohm resistor. To place Nuvi into charging mode, the 200K ohm resistor must be changed to 17.3KOhm. (also successful with 22KOhm resistor).