U0168
Lost Communication with Passive Restraint Module
1999-2000 BMW 528iT E39 2.8L I6 🇩🇪
Critical SeverityNetwork
Description
Cannot communicate with the passive restraint or supplemental restraint (SRS) module.
Symptoms
- Airbag warning light on
- SRS system disabled
- Seatbelt pretensioners disabled
- Passenger airbag status unknown
Common Causes
- SRS module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Clockspring failure
Diagnostic Steps
- Check SRS module fuse
- Test power and ground
- Check CAN wiring
- Check clockspring
- Inspect SRS connectors under seats
Repair Notes
Safety critical system. Check fuses. Do not attempt to service SRS without proper training.
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
U0168 on Other Vehicles
Common Questions
What does code U0168 mean on a 1999-2000 BMW 528iT E39?
U0168 stands for "Lost Communication with Passive Restraint Module". Cannot communicate with the passive restraint or supplemental restraint (SRS) module.
What are the symptoms of U0168 on a BMW 528iT E39?
Common symptoms of U0168 include: Airbag warning light on, SRS system disabled, Seatbelt pretensioners disabled, Passenger airbag status unknown.
What causes U0168 on a 1999-2000 BMW 528iT E39?
Common causes of U0168 include: SRS module failure, CAN bus wiring, Module power loss, Fuse blown, Clockspring failure.