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Toyota Repair/Fault Code P0773

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Expert: Ted Ritter - 6/5/2007


Question
I have a 1999 Toyota Celica with the check engine light on, after scanning it, the code P0773 Shift Solenoid E electrical? I checked the solenoids inside the oil pan and the resistance is at 13.9 Ohms and they open and close when energized with 12v I checked the resistance at the ECM from the SL terminal to ground and got 4OHMs

Answer
The shift solenoid "E" is the solenoid that locks the torque converter at cruising speeds, in most cases solenoids are not the problem, they get clogged with foreign material and stop passing fluid or get stuck, I would recommend removing the transmission oil pan and inspect it for any metal particles in the bottom of the pan and if there are, the transmission is the problem and it will need to be replaced.

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Ted Ritter

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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 almost ten years an have answered over 16,000 questions helping Toyota owners with their problems without any compensation, some of my answers are published on many other websites via google and other search engines. AllExperts recently added a new feature which allows questioners to donate to experts on the site, any amount of donation is very much appreciated, to make a donation just click on the DONATE button.

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Toyota technician since 1979,expert in electrical systems,OBD systems,engine repair, driveability problems,EFI systems,ASE certified,Toyota master technician.
Certified Hybrid Vehicle technician.

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Toyota master technician, ASE certified in eight catagories, Hybrid vehicle certified. Toyota technical training: Engine Automatic transmission Manual transmission Drivetrain Electrical systems Brakes and chassis Air conditioning Engine performance and diagnostics Hybrid systems

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