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2013 AUDI A6

3.0L Supercharged V6AWDAUTOMATICgassupercharged
6 active safety recalls on this vehicle — view recalls
Repairs0Labor991Torque6374Fluid15DTC1810Battery0Maintenance0Recalls6
P0041moderate severityPowertrain

O2 Sensor Signals Swapped Bank 1 Sensor 2 / Bank 2 Sensor 2

on 2013 Audi A6 3.0L Supercharged V6 · AWD

What this code means

The downstream O2 sensor signals for Bank 1 and Bank 2 appear to be swapped.

Symptoms

  • Check Engine Light
  • Incorrect catalyst monitoring
  • Failed emissions

Common causes

  • Sensor connectors swapped
  • Wiring crossed after service

Diagnostic steps

  1. Verify downstream sensor connections
  2. Trace wiring to PCM

Repair notes

Correct the sensor connector routing.

Other Powertrain codes on this vehicle

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