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Cadillac
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1992
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DeVille Touring
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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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Pcm Trouble Code Diagnosis
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Pcm Code E38, Open Mat Sensor CKT
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Test Conditions
Test Conditions
PCM Codes E14 and E15 not set. Coolant sensor temperature greater than or equal to 23°F (-5°C).