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Jeep
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2016
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Grand Cherokee SRT
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Repair and Diagnosis
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Engine Performance
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System
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6.4L - DTCS P000B To P0300
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DTC Troubleshooting
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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 element input is above the maximum acceptable voltage.