Last time I got these errors it was the output speed sensor. I swapped both out this time and the CEL never went away. I cleared it out using the code reader and it came back. I cleared it out again and now its gone for good, however now the car is still in "limp in" mode only with no CEL.
unfortunately, that list only shows one of his error codes, the speed sensor which he already checked.
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#121986, "RE: Error Codes CEL problems" In response to Reply # 2 Dec-29-08 07:07 PM by teklein
Yeah, I actually got busy and wanted to use the wiki linking Dino coded I got that far then was heavily distracted.
P0500 is the speedo P0700 appears to be a generic transmission fault P0731 appears to be a transmission gear ration fault P0732 appears to be A/T improper 2nd gear ratio
It could be your TCU going up. According to what I just briefly read, your torque converter could be experiencing problems.
Id go get your trans checked out. Its still running fine? No slipping, squeaking, etc?