01 Ez-go PDS 3/2 Beep code, Solenoid good

[jssloan63]

Hi guys. This is my first post in your wonderful forum, but I have spent many hours researching previous post. Sorry if I repeat any previously asked questions, but I am at a loss, so here we go.

I have a 2001 Ez-go PDS, stock everything except I added a light kit and this speed chip harness:
http://www.ebay.com/itm/EZGO-Speed-C...item51bc782e53

Cart was running great, stopped it the other day, got back on and moves very slowly. Got a 3-2. beep code for welded solenoid. Replaced solenoid. No change.

Performed diagnostic test from here: http://www.buggiesgonewild.com/elect...noid-code.html

Get full voltage at every point except J1 post 6 (solenoid -) where I get 25v .

Here is the really confusing part. If I remove the speed chip harness, and hook the tow/run back directly to the controller, I get nothing. No solenoid voltage, no reverse buzzer, nothing. Hook the harness back up, cart runs slow until I quickly flip the key switch off and on, then it runs perfectly.

I'm thinking bad controller, but why will the cart only get voltage if the aftermarket speed chip harness is hooked up? Any info or ideas will be appreciated. Thank you guys so much for your time and the information you provide to us amateur cart modders!