Code p0741 refers to the torque converter clutch(TCC) solenoid--performance or stuck off===causes --Wiring-- TCC solenoid. The engine light is telling you that the cpu has found sensors that are out side of set parameters logged in the cpu program. The problem will be in the TCC solenoid either failed or the wiring connectors are dirty or have water in the connection. The fault refers to the unit and not the internals of the gear box which would have showed up with other fault codes.
Thank you so much for your response. Just so I'm clear, when you say "The fault refers to the unit and not the internals of the gear box", do you mean the problem is on the outside and not on the inside of the transmission. AKA easy to fix? Do you know if this requires a replacement transmission? In addition I found a response on another site that suggested "This code occurs when the pump pressure is too low to maintain a converter lock. This can also occur when the car has the wrong size tires installed. The car sets this code because the engine RPM is too high during highway set speed of 51 miles per hour. Most often, about 90 percent of the time this is a bad transmission due to an internal leak the trans has low pump pressure. A small percentage of the time this is because of a car modification like wrong tires, wrong wheels, junk yard wrong transmission installed in car, or intermittent no power at the lockup solenoid wire due to faulty harness, ignition switch, etc. ". Does this mean anything to you?
×
SOURCE: P0741 torque converter stuck off code
firstly it could be that the check engine light is mal-functioning or not. why not drive it as they said and if after that its still on get back to us.
Testimonial: "This is very helpful information. I just would like to know, once the cycles completes will the check engine go out on its own or not?"
SOURCE: P0741 torque converter stuck off code - 2004 Toyota corolla
P0741 deals with internal transmission torque converter slip. A proper scan tool that is capable of reading the sensor's data inside the transmission would show the slipping torque converter and the fluid temperature.
It is critical to know exactly what conditions are present when the code stores. If the codes were not erased, they could be old codes in it's history.
Go back to the transmission shop or where you had the work done on replacing the TCC solenoid and have them read and clear the codes history. As mentioned, they could be old codes that is being read prior to your repairs.
Thank you for using Fixya and good luck, Have a shop verify line pressure, and provided no valves in the TCC hydraulic circuit are worn, replace the torque converter. Also, Lubegard Shudder Fix will at least fix this for awhile. Or try a transmission flush by a shop that uses BG brand products.
Testimonial: "Thank you very very much."
969 views
Usually answered in minutes!
It would not hurt to have a pressure test done on the transmission to ensure correct pressures. As to the rest of the responses the car cannot set the code because that is set when the cpu finds sensors out of the parameters. If the tyres are wrong it would mean gear selection as different road/engine rpm ratios. You never mentioned anything about a replacement transmission and I understand that there were no problems prior to this happening which rules out the other suggestions of junk yard exchanges.. I stand by my original statement that the fault is in the TCC and if you have that looked at then you will fix the problem. A change of oil in the transmission will help but you will find that put if you have the pressure test done. As to the fix and how easy it is I suggest you talk to a reputable transmission repairer to answer that.
×