U0309moderate severityNetwork
Software Incompatibility With Body Control Module A
on 2018-2024 Toyota Camry 3.5L V6 · FWD
What this code means
Body control module A has software incompatible with other network modules. This may cause various electrical feature faults.
Symptoms
- Accessory malfunctions
- Warning lights on dash
- Erratic electrical operation
Common causes
- Mismatched module software version
- Module replaced without programming
- Incomplete software update
- Failed body control module A
Diagnostic steps
- Verify software versions across modules
- Compare to manufacturer specs
- Reflash module with correct software
- Retest system operation
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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