As Scott already mentioned, you will see continuity only on ground. I would take a look at your DE-9 connections on the FMI cable again. You are playing with 28AWG wire and it is VERY easy to break. You might have also nicked the insulation and shorted out one of the signal wires.
Are any of the OT2 LEDs doing anything when everything is connected and power is applied? If the Nuvi is talking to the OT2 with GPS position, you should see the ACT LED flashing green about once per second. If the position is invalid, then the ACT LED will be red/flashing red. If you have nothing, then that is a pretty good indicaton you have a wiring problem since your configuration looks good. Larry K7YBZ --- In [email protected], Phil <ya...@...> wrote: > > Thanks Keith, I will make those changes you suggested. I only put in > 2-2 since I plan on only using 5w while mobile. > > Scott - updating the firmware on the Nuvi has the same results. I'm > thinking after work tonight I will have to try the XYL's Nuvi 265 and > see if I can at least get that into fleet mode and rule out any problems > with the GPS. If that doesn't work, I will have to test out the cable > with the ohm meter. I should see continuity between the USB pins and > the DB9 pin even with the shift circuit in place, correct? > > Thanks again for the help guys > 73 > Phil / w2lie >
