Mike's Workshop Manuals
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Jeep
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2018
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Cherokee Limited, 3.2L Eng VIN S, AWD, Automatic T/Case Control
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Repair and Diagnosis
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Engine Performance
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System
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3.2L - DTCS P0072 To P0301
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Diagnosis And Testing
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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.