DTC U1020 Ford

O2 Sensor Negative Current Control Circuit Open Bank 2 Sensor 1

O2 Sensor Negative Current Control Circuit Open Bank 2 Sensor 1

Description

Modeled exhaust temp, No fuel cut off, gt;2 Sec. Heater control, Active

Cause and Solution

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

Video Guide

Duration: PT4M | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: U1020
  • Brand: Ford
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