![]() ![]() P0743: Torque Converter Clutch Solenoid Circuit Electrical.P0742: Torque Converter Clutch Circuit Stuck On.P0741: Torque Converter Clutch Solenoid Circuit Performance/Stuck Off.Replace or rebuild transmission – $1,250 to $5,500Īlong with the P0740 trouble code, you may notice several others in your reader. ![]() Add/change transmission fluid – $50 to $350.Repair electrical malfunction – $50 to $550.Replace torque converter – $450 to $1,550.Replace torque converter clutch solenoid – $55 to $555.However, if you can perform the repair yourself, the cost might be lower. On average, we have some estimates that include both parts and labor. Your next step is to determine what that fix might cost. Once you’ve walked through the diagnostic steps, you should have a better idea of what needs to be fixed. When dealing with the transmission, it’s best to avoid causing any more damage. Some of the steps can get more complicated and they aren’t necessarily for the untrained. If you need to perform a diagnosis beyond what we’ve outlined, you may want to visit a mechanic. Check all of the connections to ensure the appropriate amount of ohms. Touch the multimeter to the pins that correspond with each side of the clutch solenoid circuit and the transmission’s internal harness or transmission control module.Start by finding the wiring diagram for your vehicle in the service manual. If you have a digital multimeter, you can run some further tests.If you notice trouble with a connector or wire, replace it. Look at the transmission wiring harness to see if there’s any corrosion, fraying or damage.Compare it against a transmission fluid color chart to see where it stands. If it looks contaminated or old, change the fluid. You should also check the quality of the fluid. ![]()
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