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DTC codes / U04xx · Invalid data received from a module / U0475

U0475Invalid Data Received From Restraints System Sensor E

U0475 means the module that monitors the restraints system received invalid or missing data from sensor E, which is typically a side impact or occupant detection sensor in the airbag network. The computer detected a message that was out of range, corrupted, or absent when expected, so it cannot trust that sensor's input for crash decisions.

SystemNetwork
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaInvalid data received from a module

Symptoms you may notice

  • Airbag warning light illuminated on the instrument cluster, often with no other obvious change in vehicle behavior
  • A chime or message on the driver information center stating a restraint system fault or service airbag soon
  • Passenger airbag status indicator may show off or fault even when the seat is occupied
  • In some vehicles, remote start or certain convenience features may be disabled as a protective measure
  • Often no symptoms besides the warning light, with the vehicle driving and braking normally

Common causes, most likely first

  1. Damaged or chafed wiring harness at the sensor connector or along the seat or pillar routing
  2. Corroded or loose electrical connector pins at sensor E or at the restraints control module
  3. Failed restraints sensor E itself, such as a side impact or occupant classification sensor
  4. Low or unstable battery voltage causing communication faults on the controller area network (CAN) bus
  5. Water intrusion or crash damage affecting the sensor mounting area or harness
  6. Software or calibration issue in the restraints control module after a battery replacement or repair

How to diagnose and fix it

  1. Verify battery voltage and charging system output, then clear the code and test-drive to see if U0475 returns
  2. Inspect the sensor E connector and harness for corrosion, loose pins, chafing, or water intrusion, repairing as needed
  3. Check the sensor mounting and torque, confirming the sensor is secure and free of debris or damage
  4. Use a scan tool to read live data and confirm whether sensor E reports plausible values or drops out intermittently
  5. Perform a wiggle test on the harness while watching live data to expose intermittent connection faults
  6. If wiring and power are good, substitute a known-good sensor E or follow the manufacturer's diagnostic flow for sensor replacement
  7. After repair, clear codes and verify the airbag warning light stays off through several key cycles and a road test

What the airbag light is really telling you

  • U0475 is a communication fault, not a deployment command, so the airbag has not necessarily fired or failed to fire; the module simply cannot trust sensor E's data.
  • A weak or failing battery is a common hidden cause because low voltage corrupts CAN bus messages and sets restraint sensor communication codes that disappear after charging.
  • Seat removal or replacement often pinches or stretches the occupant sensor harness, so check recent interior work before condemning the sensor.
  • The restraints control module may store U0475 alongside other U-codes, and fixing only the sensor can leave the light on if the underlying bus or power fault remains.
  • Some vehicles disable remote start or passenger airbag function when this code is active, so the warning light may be the only clue to a broader safety system shutdown.

Can I keep driving with U0475?

You can usually drive the vehicle, but the airbag system may be degraded and could fail to deploy correctly in a crash. Avoid hard impacts and have the fault diagnosed promptly, especially if the passenger airbag indicator shows a fault.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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