originaliowan

The other day my well cared for 2005 S4 avant with 86k miles lit up my MIL light. I simply started it up to idle for 15 minutes, and warm up before going home from work (I live in Alaska).

Invested in a Ross-Tech VCDS and it provided the following information with an Auto-Scan:

____________


4 Faults Found:
16440 - Oxygen (Lambda) Sensor B2 S2: Heating Circuit
P0056 - 004 - Malfunction / Open Circuit - MIL ON
17548 - Oxygen (Lambda) Sensor; B2 S2
P1140 - 004 - Internal Resistance too High - MIL ON
16420 - Oxygen (Lambda) Sensor B1 S2: Heating Circuit
P0036 - 004 - Malfunction / Open Circuit - MIL ON
17522 - Oxygen (Lambda) Sensor; B1 S2
P1114 - 004 - Internal Resistance too High - MIL ON
Readiness: 0010 1101

Mode 07: Pending emission related fault codes

Address 10 (Engine): 4 Faults Found:
P0056 - Oxygen (Lambda) Sensor B2 S2: Heating Circuit: Malfunction / Open Circuit
P0161 - Oxygen (Lambda) Sensor B2 S2; Heating Circuit: Malfunction
P0036 - Oxygen (Lambda) Sensor B1 S2: Heating Circuit: Malfunction / Open Circuit
P0141 - Oxygen (Lambda) Sensor B1 S2; Heating Circuit: Malfunction

_____________

Obviously it provided more information than provided, but this seemed to be applicable. It does not make sense that multiple O2 sensors would fail all at this same time. I checked fuses in driver door, and all looks good. Any ideas crew? Any and all help would be appreciated.
ap

jining

You ever figure out this issue? I'm having the same problem....