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My RAV4 2007 now has Check engine, VSC Trac & Trac Off

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Hi, My RAV4 2007 now has...
Hi,
My RAV4 2007 now has Check engine, VSC Trac & Trac Off warning lights. Its on and off, sometime on and sometime off. Just see the problem one day and took it to auto shop with PO606 Diagnostics code
Submitted: 3 years ago.Category: Toyota
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Answered in 18 minutes by:
5/30/2015
Toyota Mechanic: Dan, Technician replied 3 years ago
Dan
Dan, Technician
Category: Toyota
Satisfied Customers: 26,067
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Hello, my name is ***** ***** I'm here to help get your problem solved. 4 cylinder or V6 engine?
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Customer reply replied 3 years ago
V6
Customer reply replied 3 years ago
V6 engine
Toyota Mechanic: Dan, Technician replied 3 years ago
This code usually means one of the rear oxygen sensors have failed but can also mean the ECM has failed. To know for sure check the oxygen sensor and air fuel ratio sensor impedance reading using a scanner. The impedance should remain stable. When cold the reading will be higher at approximately 1000 ohm reading and when it warms up the reading will be low at the 20 ohm range. If any one sensor is not stable and moves around, suspect it as the faulty part. This would be around a $250 repair to have done at a shop. Let me know if you have more questions, thanks.
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Customer reply replied 3 years ago
What is ECM ? does it has anything to do with Transmission problem ?
Customer reply replied 3 years ago
Never mind .. Thanks ... Bye
Toyota Mechanic: Dan, Technician replied 3 years ago
ECM is the main engine computer. This would not be related to transmission problem but if you want to explain what transmission is doing I'll let you know if it is something I'm familiar with. Thanks.
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Customer reply replied 3 years ago
Thanks. I am done ..
Toyota Mechanic: Dan, Technician replied 3 years ago
No problem, let me know if you end up running into more questions. You can reply to this answer at any time without additional fees. Thanks again and have a great evening!
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