F250 2002 V10 fault code P0743 torque converter clutch circuit

Fault codes rarely cause any drivability related symptoms.
P0740 NISSAN - Torque Converter Clutch Solenoid Circuit Fault
Possible causes

• Low transmission fluid level
• Dirty transmission fluid
• Faulty torque converter clutch solenoid valve
• Torque converter clutch solenoid valve harness is open or shorted
• Torque converter clutch solenoid valve circuit poor electrical connection

• P0826 means there is an issue with a circuit for the up and down switch, usually due to a disabled manual shifter or TCM placed in Limo-in mode.
• The presence of a stored code P0725 means that the powertrain control module (PCM) has detected a circuit malfunction with the engine speed sensor input signal. The engine speed input sensor is sometimes called the transmission input speed sensor and the input speed sensor. This type of code may be caused by a mechanical problem or an electrical problem

All those codes refer to the transmission on an automatic gearbox. Looks like there's a fault on the gearbox electrics.

P1765=Transmission 12 volt supply relay control circuit.
P0753=Shift Solenoid "A" Electrical
P0743=Torque Converter Clutch Circuit Electrical

P0743 Torque Converter Clutch Circuit Electrical
P0760 Shift Solenoid C Malfunction

You need transmission repair.
That P0743 for ford is a diagnostic trouble code is set when the Engine Management Computer (EMC) also known as the Powertrain Control Module (PCM) and also known as the Engine Control Module (ECM) detects a fault with the torque converter clutch (TCC) solenoid electrical circuit, which is contained inside the transmission.

Go here - www.jeepforum.com/forum/f11/tech-faq-links-tsbs-89273/ - and find the AW-4 Service and Diagnostic Manual. Looks like you need to test some solenoids.

P0740 (M)Torq Con Clutch, No RPM Drop at Lockup. Relationship between engine and vehicle speeds indicated failure of torque convertor clutch lock-up system (TCC/PTU solenoid)
P0743 (M)Torque Converter Clutch Solenoid/ Trans Relay Circuits. An open or shorted condition detected in the torque convertor clutch (part throttle unlock) solenoid control circuit. Shift solenoid C electrical fault - Asin transmission
P0743 (M)Torque Converter Clutch Solenoid/ Trans Relay Circuits. An open or shorted condition detected in the torque convertor part throttle unlock solenoid control circuit (3 or 4-speed auto. trans. only).__________________
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P0740 - Torque Converter Clutch Malfunctionhttp://engine-codes.com/p0740.htmlForum CodePossible causes- Low transmission fluid level
- Dirty transmission fluid
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted When is the code detected?Diagnostic trouble code P0740 is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.

P0700 TCM has requested PCM to run on Check engine light to alert to a fault in the automatic transmission.

P0743 - Torque Converter Clutch Circuit Electrical
Possible causes- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid
Tech notes This is an electrical problem code. Could be a problem to the harness to the TCC solenoid, the TCC solenoid connector or the TCC solenoid it self.
P0755 - Shift Solenoid B Malfunction
Possible causes- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid B valve
- Shift solenoid B valve harness or connectors
- Shift solenoid B valve circuit is open or shorted Tech notes When the a transmission solenoid is malfunction, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

Read more: http://engine-codes.com/p0755.html#ixzz27PjeNdA5

You must do the diagnostics for each code.
Here are the possibilitesP0740 DODGE - Torque Converter Clutch Circuithttp://engine-codes.com/p0740_dodge.htmlForum CodePossible causes- Low transmission fluid level
- Dirty transmission fluid
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
P0743 DODGE - Torque Converter Clutch Solenoid Circuithttp://engine-codes.com/p0743_dodge.htmlForum CodePossible causes- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid

P0753 DODGEP0753 DODGE - 3-4 Shift Solenoid Relayhttp://engine-codes.com/p0753_dodge.htmlForum CodePossible causes- Faulty shift solenoid valve
- Shift solenoid valve harness or connectors
- Shift solenoid valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid

P0743 - Torque Converter Clutch Circuit Electrical
Symptoms - Engine Light ON (or Service Engine Soon Warning Light) Possible causes - Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid
Tech notes This is an electrical problem code. Could be a problem to the harness to the TCC solenoid, the TCC solenoid connector or the TCC solenoid it self.

P0743 is torque converter circut electrical. Could mean that the lockup solenoid is faulty or connections are bad.