U0065high severityNetwork
Control Module Communication Bus F Low
on 2019 Lexus UX 200 2.0L I4 · FWD
What this code means
The voltage on the F communication bus is lower than expected, disrupting module data transfer. Modules may drop offline intermittently or fully.
Symptoms
- Communication faults stored
- Intermittent module dropout
- Dash warning lights
Common causes
- Bus F wiring shorted low
- High resistance in bus wiring
- Poor ground connection
- Faulty control module
Diagnostic steps
- Scan network for U-codes
- Check bus F signal voltage
- Inspect wiring and connectors
- Repair 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