What Does U0474 Mean?
The airbag control module is receiving corrupted or implausible data from restraint system sensor D (typically another side impact sensor or rear impact sensor). This represents a data integrity issue on the vehicle's safety network.
Safety Warning
Critical safety concern. Restraint system functionality is compromised, potentially preventing proper airbag deployment. Immediate professional repair required.
Common Causes
35%
Faulty or damaged restraint system sensor D (accelerometer/impact sensor)
30%
Corroded, loose, or damaged wiring harness connections to sensor D
20%
Water intrusion or corrosion in sensor D connector
10%
Failed airbag control module misinterpreting sensor data
5%
CAN bus communication fault or network interference
Diagnostic Steps
1
Step 1: Access sensor D data parameters with scan tool and evaluate if data stream is active and readings are within specifications
2
Step 2: Locate sensor D (often opposite side pillar or rear quarter panel area) and check for collision damage or water exposure
3
Step 3: Inspect sensor D electrical connector for corrosion, terminal damage, or loose connection; repair as necessary
4
Step 4: Test sensor D circuit voltage, ground, and signal integrity using digital multimeter and oscilloscope if available
5
Step 5: Replace sensor D if defective; perform system relearn procedure if required by manufacturer and verify proper operation
Estimated Repair Cost
$200 - $800
Parts + labor, varies by vehicle and location
The airbag control module is receiving corrupted or implausible data from restraint system sensor D (typically another side impact sensor or rear impact sensor). This represents a data integrity issue on the vehicle's safety network.
The most common cause of U0474 (Invalid Data Received From "Restraints System Sensor D") is: Faulty or damaged restraint system sensor D (accelerometer/impact sensor)
Typical repair costs for U0474 range from $200 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Critical safety concern. Restraint system functionality is compromised, potentially preventing proper airbag deployment. Immediate professional repair required.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0474 to identify the root cause.
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Quick Info
Category
Network
System
Supplemental Restraint System (SRS/Airbag)
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
