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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (3.0L Diesel - DTCS P0001-00 To P01CC-00) >> DTC Troubleshooting >> P0031-00-O2-Sensor 1/1 Heater Circuit Low >> Set Condition

Set Condition

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The Powertrain Control Module (PCM) detects less than 3.0 Volts for 5.0 seconds on the O2 Sensor 1/1 Heater Control circuit.