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Jeep
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2018
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Wrangler Unlimited Moab
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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 P0038 To P018C
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DTC Troubleshooting
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P0138-O2 Sensor 1/2 Circuit High
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the Oxygen Sensor 1/2 signal voltage is above 1.2 volts for over 9.0 seconds.