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Jeep
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2017
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Wrangler Unlimited Sahara, Automatic Trans
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Repair and Diagnosis
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Engine Performance
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System
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3.6L - DTCS P2123 To U1418
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Diagnosis And Testing
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P2181-Cooling System Performance
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Set Condition
Set Condition
If the actual ECT Sensor value is above or below the predicted ECT Sensor value by more than a calibrated threshold.