U0168
NetworkModule Communicationcritical severityLost Communication with Passive Restraint Module
What U0168 Means
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
Where to start: Safety critical system. Check fuses. Do not attempt to service SRS without proper training.
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