U0116high severityNetwork
Lost Communication With Fuel Injector Control Module
on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD
What this code means
Communication with the fuel injector control module has been lost on the data bus. This can affect fuel delivery and engine operation.
Symptoms
- Engine misfire or rough running
- Hard starting or no start
- Check engine light on
Common causes
- Damaged bus wiring or connectors
- Poor ground or power supply
- Failed injector control module
- Blown fuse
Diagnostic steps
- Scan all modules for codes
- Check module power and ground
- Inspect CAN wiring for breaks or shorts
- Test communication bus integrity
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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