What Does U0433 Mean?
The control module is receiving invalid or implausible data from the forward-looking radar or distance sensor used for adaptive cruise control. Data corruption, sensor misalignment, or communication errors are indicated.
Common Causes
30%
Radar sensor misalignment or obstruction (dirt, ice, debris on sensor face)
25%
Radar sensor internal failure or degraded performance
25%
Damaged wiring, connector corrosion, or water intrusion in sensor circuit
15%
CAN bus communication fault or control module software issue
5%
Aftermarket front-end modification or incorrect sensor calibration following collision repair
Diagnostic Steps
1
Step 1: Visually inspect radar sensor location (typically behind front bumper or grille) for physical damage, dirt, ice, or obstructions blocking sensor face
2
Step 2: Check sensor mounting bracket for proper alignment and secure attachment; verify no aftermarket modifications affecting sensor position
3
Step 3: Inspect sensor connector and wiring for corrosion, water intrusion, or damage; check connector seal integrity
4
Step 4: Monitor live data from radar sensor using scan tool - verify sensor provides distance readings when stationary objects are placed in front of vehicle at various distances
5
Step 5: Perform manufacturer-specific radar sensor calibration/aiming procedure using proper alignment tools; replace sensor if calibration fails or data remains invalid
Estimated Repair Cost
$150 - $1,500
Parts + labor, varies by vehicle and location
The control module is receiving invalid or implausible data from the forward-looking radar or distance sensor used for adaptive cruise control. Data corruption, sensor misalignment, or communication errors are indicated.
The most common cause of U0433 (Invalid Data Received From Cruise Control Front Distance Range Sensor Single Sensor or Center) is: Radar sensor misalignment or obstruction (dirt, ice, debris on sensor face)
Typical repair costs for U0433 range from $150 to $1,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Adaptive cruise control and collision warning systems will be disabled. Driver must maintain full manual control of vehicle speed and following distance.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0433 to identify the root cause.
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Quick Info
Category
Network
System
Adaptive Cruise Control / Driver Assistance
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
