U0195
Lost Communication with 4WD Control Module
2001-2003 BMW 525iT E39 2.5L I6 🇨🇦
High SeverityNetwork
Description
Cannot communicate with the four-wheel drive engagement control module.
Symptoms
- 4WD indicator flashing
- Cannot engage or disengage 4WD
- Service 4WD light
- Drivetrain warning message
Common Causes
- 4WD module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Transfer case actuator issue
Diagnostic Steps
- Check 4WD module fuse
- Test power and ground
- Check CAN wiring
- Test transfer case actuator motor
- Inspect 4WD switch
Repair Notes
Check fuses and transfer case actuator. Module may need reprogramming after replacement.
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
U0195 on Other Vehicles
Common Questions
What does code U0195 mean on a 2001-2003 BMW 525iT E39?
U0195 stands for "Lost Communication with 4WD Control Module". Cannot communicate with the four-wheel drive engagement control module.
What are the symptoms of U0195 on a BMW 525iT E39?
Common symptoms of U0195 include: 4WD indicator flashing, Cannot engage or disengage 4WD, Service 4WD light, Drivetrain warning message.
What causes U0195 on a 2001-2003 BMW 525iT E39?
Common causes of U0195 include: 4WD module failure, CAN bus wiring, Module power loss, Fuse blown, Transfer case actuator issue.