What Does U0405 Mean?
A module on the network has determined that data from the Cruise Control Module is invalid or fails data validation checks. This impacts adaptive cruise, speed control, and ADAS functions.
Common Causes
30%
Failing cruise control module sending corrupted data
25%
Radar or forward-facing sensor providing invalid data to cruise module
20%
CAN bus communication problems affecting cruise control circuit
15%
Speed sensor data inconsistency affecting cruise calculations
10%
Software version mismatch or corrupted calibration
Diagnostic Steps
1
Step 1: Monitor cruise control module data stream for erratic values or frozen parameters
2
Step 2: Verify all speed sensor signals are reading correctly and consistently across modules
3
Step 3: Test radar/camera sensor operation and perform alignment/calibration check if equipped
4
Step 4: Inspect cruise control module harness and connectors for damage or corrosion
5
Step 5: Check for software updates or TSBs related to cruise control system, reflash if available
Estimated Repair Cost
$150 - $1,200
Parts + labor, varies by vehicle and location
A module on the network has determined that data from the Cruise Control Module is invalid or fails data validation checks. This impacts adaptive cruise, speed control, and ADAS functions.
The most common cause of U0405 (Invalid Data Received From Cruise Control Module) is: Failing cruise control module sending corrupted data
Typical repair costs for U0405 range from $150 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Cruise control and adaptive cruise features will be disabled. Manual vehicle control remains unaffected, but driver convenience and advanced safety features are unavailable.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0405 to identify the root cause.
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Quick Info
Category
Network
System
Cruise Control/ADAS
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
