DTC U1971 Hyundai

O2 Sensor Pumping Current Trim Circuit Open Bank 2 Sensor 1

O2 Sensor Pumping Current Trim Circuit Open Bank 2 Sensor 1

Description

Modeled exhaust gas temp, lt; 700° C O2S ceramic temperature, gt;720° C Fuel cut off, Active heater control, closed loop Low fuel signal, On Than wait gt; 600 Sec.

Cause and Solution

Check fuseCheck for short ground in wiresCheck voltage from oxygen sensorCheck oxygen sensor heater voltage groundReplace ECM

Video Guide

Duration: PT4M9S | Uploaded: 2020-06-21

Diagnostic Info

  • DTC Code: U1971
  • Brand: Hyundai
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