Lost Communication with Exhaust Gas Recirculation Module
2000-2002 Rolls-Royce Corniche 6.75L V8
Description
Cannot communicate with the EGR system control module.
Symptoms
- Check Engine Light
- Increased NOx emissions
- EGR-related DTCs
- Poor fuel economy
- Rough idle
Common Causes
- EGR module failure
- CAN bus wiring issue
- Fuse blown
- Connector corrosion
- Carbon buildup causing module damage
Diagnostic Steps
- Check EGR module fuse
- Test power and ground
- Inspect CAN wiring
- Check connector condition
- Test EGR module directly
Repair Notes
Check fuses and wiring. EGR modules on diesels are prone to carbon contamination.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0108 on Other Vehicles
Rolls-Royce Cullinan
2019-2024 6.75L V12 Twin Turbo
Rolls-Royce Dawn
2016-2024 6.6L V12 Twin Turbo
Rolls-Royce Ghost
2010-2024 6.6L V12 Twin Turbo
Rolls-Royce Phantom VII
2003-2017 6.75L V12
Rolls-Royce Phantom VIII
2018-2024 6.75L V12 Twin Turbo
Rolls-Royce Silver Seraph
1998-2002 5.4L V12
Rolls-Royce Silver Spirit
1990-1998 6.75L V8
Rolls-Royce Silver Spur
1990-1998 6.75L V8
Common Questions
What does code U0108 mean on a 2000-2002 Rolls-Royce Corniche?
U0108 stands for "Lost Communication with Exhaust Gas Recirculation Module". Cannot communicate with the EGR system control module.
What are the symptoms of U0108 on a Rolls-Royce Corniche?
Common symptoms of U0108 include: Check Engine Light, Increased NOx emissions, EGR-related DTCs, Poor fuel economy, Rough idle.
What causes U0108 on a 2000-2002 Rolls-Royce Corniche?
Common causes of U0108 include: EGR module failure, CAN bus wiring issue, Fuse blown, Connector corrosion, Carbon buildup causing module damage.