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Jeep
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2024
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Grand Cherokee Laredo, RWD
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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 P0129 To P0141
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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 PCM detects that Oxygen Sensor 1/2 signal voltage is greater than 1.20 volts.