U1016high severityNetwork
Loss of Communication with ECM/PCM (F-CAN)
on 2011 Acura RL 3.7L V6 · AWD
What this code means
The vehicle has lost communication with the engine/powertrain control module over the F-CAN bus. Equivalent to generic code U0100.
Symptoms
- Check engine light on
- Multiple warning lights illuminated
- Poor engine performance or no-start
Common causes
- Faulty F-CAN wiring or connector
- Failed ECM/PCM
- Blown ECM/PCM power fuse
- Poor ground connection
Diagnostic steps
- Scan all modules for stored codes
- Check ECM/PCM power and ground
- Test F-CAN bus resistance and continuity
- Inspect connectors for corrosion or damage
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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