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2015 AUDI Q7
3.0L Supercharged V6 (TFSI, 280 hp)•AWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor487Torque2170Fluid10DTC1133Battery1Maintenance0Recalls2
U0146high severityNetwork

Lost Communication with Gateway Module A

on 2015 Audi Q7 3.0L Supercharged V6 (TFSI, 280 hp) · AWD

What this code means

Cannot communicate with the central gateway module that routes data between vehicle networks.

Symptoms

  • Multiple systems affected
  • Scan tool partial communication
  • Cross-network features not working
  • Intermittent multi-system faults

Common causes

  • Gateway module failure
  • CAN bus wiring issue
  • Module power loss
  • Fuse blown
  • Software corruption

Diagnostic steps

  1. Check gateway module fuse
  2. Test power and ground
  3. Check CAN wiring on all bus connections
  4. Try gateway module reprogramming
  5. Test individual bus segments

Repair notes

Gateway module connects multiple CAN buses. Failure affects cross-bus communication. Common on German vehicles.

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