U0057high severityNetwork
Control Module Communication Bus E High
on 2016 Toyota Scion FR-S 2.0L H4 · RWD
What this code means
The voltage on communication bus E is higher than normal. This disrupts data sharing among modules on that bus.
Symptoms
- Warning lights illuminated
- Modules unresponsive
- Intermittent faults
Common causes
- Short to voltage on bus E
- Faulty control module
- Corroded connectors
- Damaged wiring harness
Diagnostic steps
- Scan all modules for codes
- Check bus E for short to power
- Measure bus voltage with scope
- Inspect and test modules
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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