U0475 means a control module has received implausible, out-of-range, or corrupted data from a specific supplemental-restraint sensor designated by the manufacturer as 'Sensor E.' This is a data-integrity fault rather than a complete communication loss. Sensor E may be a side-impact, occupant-classification, rollover, or other restraint-related sensor.
The sensor itself can fail internally and transmit corrupted, intermittent, or out-of-range messages. This is the most common root cause for an invalid-data fault.
High resistance, corrosion, pin push-outs, chafing, or intermittent opens in the sensor harness can distort the data stream without causing total communication loss.
The module that receives or relays the sensor data may misinterpret or pass along corrupted information if its internal circuitry is damaged, though this is less common than sensor or wiring faults.
A weak battery, failing alternator, or corroded ground can cause modules to report invalid data during low-voltage events or module initialization.
Corrosion, shorts, opens, or termination issues on the communication network can corrupt messages between the sensor, airbag module, and other controllers.
If the PCM/ECM sets this code after receiving restraint data from another module, a PCM fault is possible but genuinely rare; it should only be considered after the sensor, wiring, and airbag module have been ruled out.
Usually no. U0475 is most often caused by the restraint sensor itself, its wiring, or the airbag SDM. PCM replacement is rarely the correct fix and should only be considered after all other causes are eliminated.
It is not recommended. The airbag or supplemental restraint system may not deploy correctly in a collision. Have the system diagnosed and repaired promptly.
The 'E' identifier is manufacturer-specific. Consult the vehicle service manual or wiring diagram to determine the exact sensor and its location.
Clearing the code may turn off the warning lamp temporarily, but the fault and light will return if the underlying sensor, wiring, or module problem is still present.