U0069high severityNetwork
Control Module Communication Bus F Open
on 1996 Toyota Land Cruiser 4.5L I6 · 4WD
What this code means
The F communication bus circuit is open, breaking the data connection between modules. Affected modules stop sharing information.
Symptoms
- Lost communication with modules
- Dash warning lights
- Features not working
Common causes
- Open bus F wiring
- Broken connector pin
- Loose connection
- Faulty control module
Diagnostic steps
- Scan network for U-codes
- Check bus F continuity
- Inspect connectors for breaks
- Repair open circuit or replace module
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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