On my '94 the torque converter hasn't locked up since I've had it. I took pin 11 on the blug plug that ran to the lockup solenoid and wired in a switch, one side to the solenoid, the other to ground. It didn't work, I tried ign power instead of ground because I wasn't sure if that was supposed to be used instead of ground, nothing. Does that mean my solenoid is bad? I have no codes that I know of.

 

The car used to be a 5 speed and now it's an automatic. Do I need a different switch for tcc lockup, because I have it wired into the brake light switch right now?

 

Dropped the pan and found out the solenoid is ok. Got voltage on Pin 11 when ign is on, and when I ground Pin 11 the solenoid engages. I checked voltage when I get up to speed and when the computer should ground the signal, and I get about .6V. I think it's supposed to be 0, and .6 is pretty close, but I don't know if that much of a difference would make the thing not work.

 

When I get up to highway speed I get 8.2 Mega ohms, should this number be lower? Could I possibly have a bad ground?

 

make sure you have the correct year and correct wire in the transmission "activated".... a 94 4l60e is much different than a 95 or newer tranny.... a 95' has a Pulse Width Modulated TCC solenoid.

 

I have checked with the transmission pan off, it sounds like the solenoid works fine, counted the wires, 12, (95 had 13) and the Pcm Vin the year code shows a 94. I checked the ground, seemed ok, maybe thinking perhaps bad flash. I'm waiting until I get a laptop battery so I can hook up and get a little better look at what the PCM says.