DTC P0138 Audi

O2 Circuit High Voltage (Bank 1, Sensor 2)

O2 Circuit High Voltage (Bank 1, Sensor 2)

Description

Modeled exhaust gas temp. 250-700° C Heater active for longer than 30 Sec. O2S rear, Ready

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: PT4M5S | Uploaded: 2020-04-29

Diagnostic Info

  • DTC Code: P0138
  • Brand: Audi
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