DTC P0157 Audi

O2 Sensor Circuit Low Voltage Bank 2 Sensor 2

O2 Sensor Circuit Low Voltage Bank 2 Sensor 2

Description

ECT at engine off, >60° C ECT, <39.8° C Modeled exhaust gas temp. 250-700° C Heater active for longer than 30 Sec.

Cause and Solution

HO2S Fuses
HO2S terminal corrosion
Open between HO2S and Power supply relay
Open or Short? between HO2S and ECM
Faulty HO2S

Video Guide

Duration: PT3M56S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P0157
  • Brand: Audi
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