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Q: problem with transmission pan seal on 2002 Lexus ES300

My check engine light just went on. I was told several months ago that I would be needing a transmission pan seal...could this be why the light went on?
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Probably not, unless you've lost so much fluid that the transmission is not functioning properly setting diagnostic codes and turned the light on. More likely, you have an engine/emissions system control fault and the computer has detected it, turning on the light, storing diagnostic codes and data which could be accessed by a technician with a scanner.
If you want to find a specialist, here's a directory link for you:
PS: Be sure that the transmission fluid is up to level in order to avoid transmission damage due to low fluid.
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No. The light came on because of an internal problem. It could be a solenoid or clutch plate problem. You need ot read the code first and then go from there
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