Focus Fanatics - View Single Post - Ford Focus 2001 - OBD2 / Auto Transmission Question
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Old 09-12-2012, 08:50 PM   #2
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You may be able to pull a trouble code with a better OBD reader, it might not be much help knowing the code.

Usually, the auto trans problems are related to the electric solenoids in the valvebody. Solenoids A and B the most common, but there are a few more. The testing involves plugging a diagnostic computer into it and forcing the trans solenoids to change state and such.
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