U0185low severityNetwork
Lost Communication With Antenna Control Module
on 2008 Dodge Viper 8.4L V10 · RWD
What this code means
A control module lost communication with the antenna control module over the data bus. This can affect radio, GPS, or other antenna-based reception.
Symptoms
- Poor radio or GPS reception
- Warning lamp illuminated
- Fault code stored
Common causes
- Faulty antenna 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 antenna module
- Inspect bus wiring and connectors for damage
- Test module communication with scan tool
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Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
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Serious DIY~$100
BlueDriver Pro →
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Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
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Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus