DTC 17517

VAG 1551 Scan Tool Printout:

DTC P1109/17517

Notes:
^ B1 = Bank 1 (right side), S1 = Sensor 1 (front HQ2S), B2 = Bank 2 (left side), S2 = Sensor 2 (rear HO2S).

^ DTC P1109/77517 is set when diagnostic is started (123 seconds after engine start) and 30 seconds after HO2S heater is switched ON when the HO2S signal voltage is less than 0.040 volts for longer than 61.5 seconds with engine coolant temperature over 80°C (176°F), HO2S control active, engine speed between 1500-5000 RPM, and load between 19% and 80%.