Error code
OBD2 U0178
OBD2U0178
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With 'Restraints System Sensor I'.
Severity
highDrive with caution; this could affect safety systems.
Summary
U0178 indicates that there is no communication between the car's diagnostic system and the supplementary restraint system (SRS) sensor I, which is part of the airbag system.
Common Causes
- Faulty SRS sensor
- Data bus issue
Fixes
FAQ
What does U0178 mean?
U0178 means there is a communication issue with the SRS sensor I, which could affect airbag deployment and other safety features.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0100Lost Communication With ECM/PCM A
- U0101Lost Communication with TCM
- U0102Lost Communication with Transfer Case Control Module
- U0103Lost Communication With Gear Shift Module
- U0104Lost Communication With Cruise Control Module
- U0105Lost Communication With Fuel Injector Control Module
- U0106Lost Communication With Glow Plug Control Module
- U0107Lost Communication With Throttle Actuator Control Module
- U0108Lost Communication With Alternative Fuel Control Module
- U0109Lost Communication With Fuel Pump Control Module
- U0110Lost Communication With Drive Motor Control Module
- U0111Lost Communication With Battery Energy Control Module 'A'