Can the TCM cause these problems?
I have a 94 Dodge Intrepid ES 3.5 liter Automatic with intermittent problems that occur simultaniously:
1. Transmission won't shift out of first gear
2. Speedometer, Tachometer, and gas guage drop to zero
3. Gear indicator lights don't work
4. No lights in the instrument panel work.
When ignition is turned on, the problem is evident right away by whether or not the instrument panel is live. If no lights come on, I turn the ignition off and try again. Randomly, the problem may or not be there when I turn the key. If I start the car without the gauges working, the transmission will not shift out of first gear while driving. The problem might last a few seconds, or 5 minutes. I've spent hours checking wires, terminals and ground connections under the hood and in the dash. I tried a used PCM with no change. When the problem isn't there, the engine runs like new. It is a smooth running, powerful car. Could it be the TCM, or do you have other ideas?
I have more about this written under "Blast from the Past, Intrepid, 1st generation"