U1024high severityNetwork
CAN Communication Circuit
on 2003 Infiniti FX45 4.5L V8 · AWD
What this code means
A fault was detected on the CAN communication circuit affecting data exchange. No direct OBD P-code equivalent.
Symptoms
- Warning lights on
- Erratic system behavior
- Communication loss
Common causes
- CAN bus wiring damage
- Faulty connector
- Defective module
- Bad ground
Diagnostic steps
- Scan all modules for codes
- Inspect CAN harness and connectors
- Measure bus resistance
- Check power and ground circuits
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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