DTC P0135 Audi
O2 Heater Circuit (Bank 1, Sensor 1)
O2 Heater Circuit (Bank 1, Sensor 1)
Description
Battery voltage, 10.7-16.1 V Heater control, Active Modeled exhaust gas temp, > 300° C O2S ceramic temperature, < 715 °C Battery voltage, 10.7-16.1 V Time after engine start, >40 sec. Engine shut off time, >300 sec. ECT at engine start, > -9.75° C Circuit Voltage, No DTC
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
Diagnostic Info
- DTC Code: P0135
- Brand: Audi