DTC P0156 Audi

O2 Sensor Circuit Bank 2 Sensor 2

O2 Sensor Circuit Bank 2 Sensor 2

Description

Modeled exhaust gas temp. 250-700° C Heater active for longer than, 50 Sec. Catalyst heating, Not active SAI, Not active

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: PT4M6S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P0156
  • Brand: Audi
Back to Blog