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Jeep
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2021
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Grand Cherokee Laredo X, AWD, Automatic T/Case Control
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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 B1810 To P0072
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Diagnosis And Testing
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P0038-O2-Sensor 1/2 Heater Circuit High
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the O2 Sensor 1/2 Heater circuit resistance is above approximately 35.0 Ohms.