U0022moderate severityNetwork
Control Module Communication Bus B Shorted To Bus B High
on 2017 Maserati Levante 3.0L V6 Twin Turbo · AWD
What this code means
The bus B low line is shorted to the bus B high line, corrupting data traffic. Modules lose communication.
Symptoms
- Communication faults
- Warning lamps on
- Module function loss
Common causes
- Short between bus B wires
- Chafed harness
- Faulty control module
- Damaged connector
Diagnostic steps
- Scan for stored codes
- Test resistance between bus wires
- Inspect harness
- Test modules individually
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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