What Does U050A Mean?
Invalid data is being received from Seat Control Module B, usually the passenger seat control module. This network communication fault prevents proper data exchange regarding seat position, memory, or comfort features.
Common Causes
35%
Seat control module B failure or internal electronic malfunction
30%
Wiring harness damage or connector corrosion under passenger seat
20%
Ground circuit fault or poor ground connection at seat module
10%
Water intrusion into seat control module from carpet wetness or leaks
5%
Network communication bus fault or signal interference
Diagnostic Steps
1
Step 1: Use scan tool to view Seat Control Module B data and determine which values are reading as invalid
2
Step 2: Verify power and ground circuits at passenger seat control module meet voltage specifications
3
Step 3: Inspect passenger seat area wiring for damage from seat movement, and check all connectors for corrosion or looseness
4
Step 4: Check passenger floor area for water intrusion and inspect module for moisture damage
5
Step 5: Test network communication signals and replace seat control module if wiring and power circuits are good
Estimated Repair Cost
$100 - $800
Parts + labor, varies by vehicle and location
Invalid data is being received from Seat Control Module B, usually the passenger seat control module. This network communication fault prevents proper data exchange regarding seat position, memory, or comfort features.
The most common cause of U050A (Invalid Data Received From "Seat Control Module B") is: Seat control module B failure or internal electronic malfunction
Typical repair costs for U050A range from $100 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Minimal safety impact. Passenger seat adjustment and memory functions may not work properly. Could affect passenger comfort and proper seating position.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U050A to identify the root cause.
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Quick Info
Category
Network
System
Body Control / Seat Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
