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Cadillac
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1990
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Seville Base, 4T60/ME9
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes
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ECM Trouble Code Charts
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ECM Code EO47: BCM-To-ECM Data Problem
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Test Conditions:
Test Conditions:
Code EO12 is clear, ignition is on and engine speed is greater than 500 RPM for 20 seconds.