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P0743 Diagnostic Trouble Code Discussion for March 2006

Torque Converter Clutch Solenoid Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0743
Help Request Posted
2000 Jeep Wrangler Sport 4.0L CEL on VIN: 1J4FA49S0Y
P0743: Transmission Relay Circuit Malfunction. Code resets instantly. I've checked power to the solenoid, through it to the ecm. I can fire the solenoid by grounding the wire at the ecm (pin 11 white connector), amp probe/oscilloscope shows solenoid "kick" (ie, pintel movement)and only around 1 amp...
March 07, 2006