Lost Communication with Suspension Control Module A
2000-2002 Rolls-Royce Corniche 6.75L V8
Description
Cannot communicate with the primary suspension control module for adaptive or active suspension.
Symptoms
- Suspension warning light
- Ride quality degraded
- Dampers in default mode
- Sport/comfort mode not available
Common Causes
- Suspension module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Damper solenoid wiring issue
Diagnostic Steps
- Check suspension module fuse
- Test power and ground
- Check CAN wiring
- Test damper solenoids
- Scan for suspension DTCs
Repair Notes
Active suspension defaults to firm setting when module communication is lost. Check fuses first.
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
U0133 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 Spectre
2023-2024 Electric AWD
Rolls-Royce Wraith
2014-2024 6.6L V12 Twin Turbo
Common Questions
What does code U0133 mean on a 2000-2002 Rolls-Royce Corniche?
U0133 stands for "Lost Communication with Suspension Control Module A". Cannot communicate with the primary suspension control module for adaptive or active suspension.
What are the symptoms of U0133 on a Rolls-Royce Corniche?
Common symptoms of U0133 include: Suspension warning light, Ride quality degraded, Dampers in default mode, Sport/comfort mode not available.
What causes U0133 on a 2000-2002 Rolls-Royce Corniche?
Common causes of U0133 include: Suspension module failure, CAN bus wiring, Module power loss, Fuse blown, Damper solenoid wiring issue.