U0133
Lost Communication with Suspension Control Module A
2001-2005 BMW 325xi E46 2.5L I6 AWD 🇨🇦
Moderate SeverityNetwork
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
Common Questions
What does code U0133 mean on a 2001-2005 BMW 325xi E46?
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 BMW 325xi E46?
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 2001-2005 BMW 325xi E46?
Common causes of U0133 include: Suspension module failure, CAN bus wiring, Module power loss, Fuse blown, Damper solenoid wiring issue.