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Jeep
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2018
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Grand Cherokee Trackhawk
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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6.2L - DTCS P2100 To P2503
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DTC Troubleshooting
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P2239-O2 Sensor 1/1 Pump Cell Current Circuit High
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When Monitored
When Monitored
This diagnostic runs when the following conditions are met
With the ignition on
The O2 Sensor 1/1 at operating temperature
The pump cell active