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Toyota Repair/2007 Toyota Corolla S check engine light


My check engine light came on (55,000 miles on auto)The code is P0741and my garage changed the OE SL Solenoid in the transmission along with putting in synthetic fluid with BG transmission conditioner.As long as I drive short distances my light stays off,but each time I drive on Highway over 100miles and stop for half hour and then drive back on highway the light comes back on.If I reset right away and drive the light does not come on immediately until I repeat the above step.The shop said the solenoid is engaging every time now but was not before change.He keeps mentioning fluid pressure when solenoid is working is around 90% and toyota does not have a spec on what it should be.Also I have driven at least 2000miles since this happening and notice no problem or noise with transmission(automatic shifts normal)My repair shop is done with car,is there a solution to this and is there a problem with me continuing to drive this car? Thank you for any response to this ? Doug

I believe there is still a recall in effect for the engine control computer which can cause this problem, I'll have to look into it a little more, please provide the following:
Part number from the ECM, it is located directly below the glove box, there is a label with some numbers, the number I need starts with 89661-then some letters and numbers.

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Ted Ritter


I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for more ten years an have answered over 16,000 questions helping Toyota owners with their problems and save thousands of dollars without any compensation, some of my answers are published on many other websites including google and various automotive forums. DONATIONS ARE VERY MUCH APPRECIATED, IF YOU HAVE RECIEVED HELPFUL INFORMATION PLEASE MAKE A DONATION. AS OF TODAY (JULY 22, 2014) ALL REQUESTED GRAPHICS, ILLUSTRATIONS, DIAGRAMS, PHOTOS, WILL REQUIRE THE MINUMUM DONATION UP FRONT.


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