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P0638 Diagnostic Trouble Code Discussion for October 2011

Throttle Actuator Control Range/Performance

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Trouble Ticket Help Requests for DTC P0638
Help Request Posted
2005 Subaru Outback XT Limited 2.5L MIL Lamp on
P0638: Throttle Actuator Control Module Performance. ... outback xt that sets a random p0638 I have followed the flow chart for the code and it has lead me to an ECM replacement. So, my question is can you put a used ECM in that vehicle? My thought on it is that you can not but I thought I would run it by everyo...
October 27, 2011