U0066high severityNetwork
Control Module Communication Bus F Shorted To Bus F High
on 2022 Ford Maverick 2.5L I4 Hybrid · FWD
What this code means
The low side of bus F is shorted to the high side, corrupting the data signal. This typically stops communication across the affected network.
Symptoms
- Multiple modules offline
- Warning lights active
- Erratic vehicle behavior
Common causes
- Bus F wires shorted together
- Pinched or damaged harness
- Faulty connector
- Failed control module
Diagnostic steps
- Scan all modules
- Check for short between bus F high and low
- Inspect harness for damage
- Repair wiring 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