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2005-2011 AUDI A6
4.2L V8•AWD•AUTOMATIC•gas•BAT
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor504Torque2218Fluid10DTC1115Battery1Maintenance0Recalls5
U0422moderate severityNetwork

Invalid Data Received from Body Control Module

on 2005-2011 Audi A6 4.2L V8 · AWD

What this code means

The data from the BCM is invalid, causing other modules to misinterpret body system states.

Symptoms

  • Multiple body electronic glitches
  • Lights behaving erratically
  • Lock/unlock inconsistent
  • Warning messages incorrect

Common causes

  • BCM software corruption
  • CAN bus noise
  • BCM partial failure
  • Water damage to BCM
  • Bad BCM ground

Diagnostic steps

  1. Check BCM for stored codes
  2. Update BCM software
  3. Test CAN bus signal quality
  4. Inspect BCM for water damage
  5. Check BCM ground connections

Repair notes

Reprogram BCM. Check for water intrusion at BCM location. Inspect ground connections.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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