Alright, the C1 pin 14 at the Front Passenger Door Module (FPDM) shouldn't be grounded if you're holding C1 in your hand & connecting an ohmeter to ground at C1 pin 14 of the cable harness. However, if you place the ohmeter on pin 14 at the C1 socket to pin 4 at the C1 socket (reading into the module) at the FPDM, you should read continuity. This is the ground bus (according to the schematic) internal to the FPDM. C1 pin 14 (cable harness) is coming from the window switch front passenger, then goes out on C1 pin 4 to G201. I'll have to do more look up for the driver side ground buses. I'll get back later.

Thank you markwb, that would explain it, I will test pin 14 tonight while connected. Thank you once again for your help. I have a manual on order so hopefully I will be able to contribute to this type of troubleshooting in the near future.

One other thing worthy of checking if you haven't done so yet, something I overlooked, is the C600 inline connector. It is located lower right front corner of passenger compartment, at the base of the front pillar.

Thanks, I could not find the inline connector, but I will try again tonight. There is a trim piece I may need to remove to find it, but I did not see anything in the entire wiring harness.

If I'm right..C600 is the connector that passes through either a firewall or into the door itself.

There is an accordian type rubber conduit (wire harness contained within) that breaks out front side of door, makes a left turn into the base of the front pillar. You will definitely have to remove that trim piece to gain access to C600.

Any update on this, Dan?

Sorry for the delay. I checked the connector in the accordian rubber boot and it tests fine. I am still waiting for my manual to come in and troubleshoot this issue. I will post when I get it resolved (hopefully I will). I just figured this could go on forever with the electronics in this car. I made sure I had the grounds good and clean as I had to reassemble the interior to drive her.