Hello,
Here is the code def I have...
P0700 Transmission Control System Malfunction.
Which could be either the transmission computer or the Input(Turbine speed) and Output Shaft Speed Sensors. And since your speedometer quit working I would say that its the input and output sensor. I would chang them out anyway they are only about $40 for both of them. The computer runs about $300.
Here are the locations....
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Monday, March 30th, 2009 AT 7:57 PM