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Jeep
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2009
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Grand Cherokee Laredo, 3.0 M, 4WD
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Repair and Diagnosis
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Engine Performance
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System
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DTCS P2239 To U0415 - Diesel
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P2239-O2 Sensor 1/1 Pump Cell Current Circuit High
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Monitor Conditions
Monitor Conditions
When Monitored:
With the ignition on and the O2 1/1 Sensor at operating temperature.