Chrysler Repair: 2000 dodge neon error code P0743 torque converter solenoid, digital ohmmeter, dodge neon

Question
how do i ohm the wiring to and from the solenoid, and what would the correct readings be? also if i where to ohm the solenoid itself what should i be reading?  i cannot seem to find a short. thanks in advance.

Answer
Hi Jeremy,
The solenoid plug is on the front of the transmission and has a dark green/white and orange/black wire. The dark green/white should have 12V on it frome fuse #10 when the ignition is on. The orange/black is a grounding wire from pin 79 of the powertrain controller which should only be grounded when the car is going over 45 mph or so. You could check that the wire is patent between the plug and the powertrain plug (near 0 ohms). The solenoid is a coil or wire so it would have a low, but non-0 resistance, maybe less than an ohm, but still not 0. To really test it you would need an impedence meter, but a good digital ohmmeter should show it to be slightly more resistance than is shown when you test the resistance of the meter leads themselves.
If the resistance, the patency, and the 12V supply is all shown to be OK, then I would suspect the solenoid is not functing properly. If you are getting torque converter lock up when you accelerate slowly from 40 to 50 mph then it is working and the code is false.
Roland