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Wrangler X, Standard
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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DTCS P0128 To P0202
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P0139-O2 Sensor 1/2 Slow Response
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Circuit Schematic
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Circuit Schematic
Fig 1: O2 Sensor 1/2 Heater Circuit Schematic
Courtesy of CHRYSLER LLC