U0055high severityNetwork
Control Module Communication Bus E Low
on 2020 BMW i3 Range Extender · RWD
What this code means
The voltage on communication bus E is lower than expected. This can interrupt data exchange between modules on that circuit.
Symptoms
- Dash warning lights
- Module functions lost
- Erratic electrical behavior
Common causes
- Short to ground on bus E
- Faulty control module
- Damaged wiring
- Poor connections
Diagnostic steps
- Scan for communication codes
- Check bus E voltage levels
- Inspect wiring for shorts
- Test suspect modules
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Other Network codes on this vehicle
CC-ID-181
System Check Failed
CC-ID-207
Central Electronics Failure, Stop 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