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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (Engine Control System Diagnosis - 2.0L (1 Of 3)) >> DTC P0031-00: HO2S Heater Control Circuit Low (Bank 1 / Sensor 1) >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
Main Action
  • Electrical Check
  1. Related fuse blown or missing
  2. Open or shorted to ground in power supply or control harness
  3. Poor connection or harness damage
  4. Faulty HO2S
Prerequisite Condition
  • Engine is running with speed over 32 RPM.
  • Battery voltage is between 10V and 16V.
Threshold Value
  • Upstream O2S heater circuit is shorted to ground.
Diagnostic Time
  • Continuously
MIL-On Condition
  • 3rd Driving Cycle
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