LEMON Manuals
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Jeep
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2021
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Grand Cherokee Laredo E, 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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3.6L - DTCS B1810 To P0072
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Diagnosis And Testing
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P0038-O2-Sensor 1/2 Heater Circuit High
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When Monitored
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
When Monitored
Battery voltage between 10.5 and 15.75 volts.
O2 Sensor Heater commanded on.
The O2 Sensor Heater circuit low fault is not active.