U1006moderate severityNetwork
CAN Bus Message Timeout
on 2010 Audi Q7 3.0L TDI V6 · AWD
What this code means
A required CAN bus message was not received within the expected time window, indicating a module is too slow to respond.
Symptoms
- Intermittent system faults
- Delayed responses from systems
- Warning lights that come and go
- Periodic feature dropouts
Common causes
- Module processor overloaded
- CAN bus high traffic load
- Intermittent wiring connection
- Module firmware bug
- Power supply voltage drop to module
Diagnostic steps
- Monitor CAN bus load percentage
- Check module software version for updates
- Test module power supply stability
- Check for intermittent wiring connections
- Scope CAN bus timing
Repair notes
Update module software if available. Check power supply stability and wiring connections.
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Bluetooth code reader (~$25)
Veepeak OBDCheck BLE →
Pairs with your phone — reads and clears codes, live data.
Serious DIY (~$100)
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
Shop-grade tablet (~$300+)
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Network codes on this vehicle
00003
Control Module - Defective
01304
Radio - No Communication
01312
Powertrain Data Bus - Defective
01314
Engine Control Module (ECM) - no communications
01315
Transmission Control Module (TCM) - No Communication
01316
ABS Control Module - No Communication
01317
Instrument Cluster Control Module (J285) - No Communication
01318
Immobilizer Control Module - No Communication
01321
Airbag Control Module - No Communication
U0001
High Speed CAN Communication Bus