U0422moderate severityNetwork
Invalid Data Received from Body Control Module
on 2014 Mazda Mazda3 2.0L I4 · FWD
What this code means
The data from the BCM is invalid, causing other modules to misinterpret body system states.
Symptoms
- Multiple body electronic glitches
- Lights behaving erratically
- Lock/unlock inconsistent
- Warning messages incorrect
Common causes
- BCM software corruption
- CAN bus noise
- BCM partial failure
- Water damage to BCM
- Bad BCM ground
Diagnostic steps
- Check BCM for stored codes
- Update BCM software
- Test CAN bus signal quality
- Inspect BCM for water damage
- Check BCM ground connections
Repair notes
Reprogram BCM. Check for water intrusion at BCM location. Inspect ground connections.
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