U0207moderate severityNetwork
Lost Communication With Movable Roof Control Module
on 2009 Audi A8 4.2L V8 · AWD
What this code means
A control module lost communication with the movable roof control module over the data bus. This can prevent operation of the sunroof or convertible top.
Symptoms
- Roof or top not operating
- Roof controls unresponsive
- Fault code stored
Common causes
- Faulty movable roof control module
- Wiring or connector fault
- Blown fuse or power loss to module
- Damaged data bus circuit
Diagnostic steps
- Scan for related U-codes on all modules
- Check power and ground at roof module
- Inspect bus wiring and connectors for damage
- Test module communication with scan tool
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ANCEL AD410 →
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Serious DIY~$100
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Autel MaxiCOM MK808S →
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Autel MaxiSys MS906 Pro →
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✓ Autel official store
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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