
Data Bus Supplementary Restraint System Srs Sensor C No Communication
U0172 — Data Bus Supplementary Restraint System Srs Sensor C No Communication. It is a medium-severity fault: you can usually keep driving for short distances. The most common cause is damaged wiring, corrosion or a loose connector in the circuit.
"Not urgent today, but it won't fix itself either."

U0172 is a network diagnostic trouble code. It identifies a fault related to Data Bus Supplementary Restraint System Srs Sensor C No Communication. The network/communication module monitors this circuit or component continuously and sets U0172 when the signal or value is outside the expected range, implausible or missing. This points to a communication or module fault that can affect one or more connected systems. The base function may still work, but performance can be affected, so the fault should be diagnosed. Diagnosis generally means inspecting the related wiring, connectors and power/ground references, then verifying the component against specification with a scan tool.
- Warning light(s) on the dashboard
- One or more connected systems may report faults
- Fault code stored in the control module
| # | Cause |
|---|---|
| 01 | Damaged wiring, corrosion or a loose connector in the circuit |
| 02 | Faulty sensor, actuator or component referenced by the code |
| 03 | Open, short or high resistance in the circuit |
| 04 | Poor power supply or ground reference to the component |
| 05 | Failed control module |
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Coming soonDealership car, motorbike, scootervehicles for saleNo technical service bulletins or recalls currently reference U0172. This section updates automatically when manufacturers publish related bulletins.
In our database U0172 is recorded across 450 vehicle models — most frequently on the Hyundai Santa-Fe, Hyundai Tucson, Ford F-150.
YES, WITH CAUTION — get it diagnosed as soon as possible.



