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Jeep
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2020
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Grand Cherokee Laredo, 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 P0073
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DTC Troubleshooting
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P0038-O2-Sensor 1/2 Heater Circuit High
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When Monitored
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.