What are the common causes of U047A?

Corrupted or outdated software in the Restraints System Sensor J. Damaged or shorted wiring at the Restraints System Sensor J. A failed Restraints System Sensor J.

Scan every module and record the stored codes. Test the Restraints System Sensor J wiring for open and short faults. Replace the Restraints System Sensor J if the circuit and grounds test good. Clear the code and retest.

U047A

Invalid Data Received From Restraints System Sensor J

System: Network communication (U code)
Lamp: Check Engine Light
Category: Network Communications

What it means

U047A means Invalid Data Received From Restraints System Sensor J.

Where it lives

For U047A, the part to look at first is the sensor named here.

Check these first

Corrupted or outdated software in the Restraints System Sensor J
Damaged or shorted wiring at the Restraints System Sensor J
A failed Restraints System Sensor J

What to do next

Scan every module and record the stored codes
Test the Restraints System Sensor J wiring for open and short faults
Replace the Restraints System Sensor J if the circuit and grounds test good
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.