E52=memory(history)has been resetmeaning the power to the computer
was disconnected and the driving/engine systems performance history has
been lost.
If they are ONLY displaying as F codes this means that they are
HISTORY codes and if they display as FF codes then they are CURRENT
codes and what we need to diagnose is ONLY the CURRENT codes.
F11 = AC high side temp circuit problem.
hope this helps good luck
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