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Home >> Cadillac >> 1990 >> Seville Base, 440T4/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> ECM Trouble Code Charts >> ECM Code EO37: Shorted Mat Sensor Circuit >> Failure Conditions:

Failure Conditions:

MAT sensor value greater than or equal to 298°F (148°C).

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