What Does U055C Mean?
Invalid or corrupted data is being received from Special Purpose Vehicle Control Module C. This indicates a communication data integrity problem with a third specialized module whose specific function depends on the vehicle manufacturer and model.
Common Causes
35%
Failed special purpose control module C requiring replacement
30%
Wiring harness damage or connector corrosion at module C
20%
Communication network faults or CAN bus interference
10%
Module software corruption or programming errors
5%
Power supply problems or voltage irregularities
Diagnostic Steps
1
Step 1: Determine the specific function of Special Purpose Control Module C for your vehicle using manufacturer service documentation
2
Step 2: Review scan tool data to identify which specific parameters from module C are showing invalid or implausible values
3
Step 3: Perform complete electrical inspection of module C including connectors, pins, wiring integrity, power supply, and ground connections
4
Step 4: Use diagnostic equipment to analyze CAN bus signals at module C location; verify proper network voltage levels and signal patterns
5
Step 5: Attempt software update or reprogramming of module C if available; replace module if fault persists after electrical verification
Estimated Repair Cost
$200 - $1,200
Parts + labor, varies by vehicle and location
Invalid or corrupted data is being received from Special Purpose Vehicle Control Module C. This indicates a communication data integrity problem with a third specialized module whose specific function depends on the vehicle manufacturer and model.
The most common cause of U055C (Invalid Data Received From Special Purpose Vehicle Control Module "C") is: Failed special purpose control module C requiring replacement
Typical repair costs for U055C range from $200 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safety concerns depend on what specific system Module C controls in the vehicle. May impact specialized functions or equipment that could have safety implications in certain vehicle configurations.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U055C to identify the root cause.
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Quick Info
Category
Network
System
Communication Network / Special Purpose Equipment
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
