Mike's Workshop Manuals
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Cadillac
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1989
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Seville Base
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Repair and Diagnosis
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DFI ECM Tests W/Codes
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Diagnostic Charts
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ECM Code EO15 - Open Coolant Sensor Circuit
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Test Conditions
Test Conditions
Codes EO37 and EO38 clear. MAT sensor value greater than or equal to 5°C.