What Does U0455 Mean?
The receiving module is getting invalid data from the occupant classification system that determines seat occupancy, weight, and appropriate airbag deployment force. This affects airbag deployment decisions.
Safety Warning
Critical safety issue. Passenger airbag may deploy with wrong force level or fail to deploy based on incorrect occupant data. Child in child seat could be at risk if airbag deploys. Immediate repair essential.
Common Causes
40%
Failed occupant classification module or sensor mat in passenger seat
25%
Damaged wiring harness under passenger seat or connector corrosion
15%
Objects or debris under passenger seat interfering with sensor mat
10%
Aftermarket seat covers or modifications affecting sensor readings
10%
Low voltage or intermittent power supply to OCS module
Diagnostic Steps
1
Step 1: Check occupant classification system data to see what weight or classification value is being reported; verify if it's reading as implausible or out-of-range
2
Step 2: Remove all items from passenger seat including floor mats; ensure seat is completely empty and test system with no weight
3
Step 3: Place calibrated weights on passenger seat per manufacturer procedure (typically 15 lbs, 35 lbs, 75 lbs) and verify proper classification changes
4
Step 4: Inspect under passenger seat for damaged wiring, loose connectors, or damaged sensor mat; check connector pins for corrosion
5
Step 5: If sensor mat tests show inconsistent readings or resistance values out of specification, replace occupant classification sensor mat assembly
Estimated Repair Cost
$300 - $1,800
Parts + labor, varies by vehicle and location
The receiving module is getting invalid data from the occupant classification system that determines seat occupancy, weight, and appropriate airbag deployment force. This affects airbag deployment decisions.
The most common cause of U0455 (Invalid Data Received From Restraints Occupant Classification System Module) is: Failed occupant classification module or sensor mat in passenger seat
Typical repair costs for U0455 range from $300 to $1,800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Critical safety issue. Passenger airbag may deploy with wrong force level or fail to deploy based on incorrect occupant data. Child in child seat could be at risk if airbag deploys. Immediate repair essential.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0455 to identify the root cause.
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Quick Info
Category
Network
System
Supplemental Restraint System (SRS) - Occupant Detection
Difficulty
Type
Generic (SAE)
Recommended Tools
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