Operation CHARM
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Cadillac
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1987
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DeVille V8-252 4.1L
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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- E Code Charts
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E066
E066
Fig. 75 ECM Code E66 Diagnosis (Engine RPM Too High/Cruise Engaged):
