What Does U0533 Mean?
The control module receiving data from the left side obstacle detection module has detected corrupted or illogical information on the vehicle's communication network. This affects left side blind spot or parking assist functions.
Common Causes
35%
Faulty left side obstacle detection control module or sensor failure
30%
Damaged wiring harness or connector to left side detection module
20%
CAN bus communication fault on safety system network
10%
Sensor misalignment, mounting damage, or physical obstruction
5%
Power supply or ground circuit issue to side detection module
Diagnostic Steps
1
Step 1: Monitor left side obstacle detection module communication status and sensor output values
2
Step 2: Inspect left side sensors (radar/ultrasonic) for physical damage, dirt buildup, or misalignment
3
Step 3: Check wiring harness along left side of vehicle for damage, especially in bumper area
4
Step 4: Test CAN bus communication at left side detection module connector
5
Step 5: Verify sensor alignment and calibration, replace module if communication remains invalid
Estimated Repair Cost
$300 - $900
Parts + labor, varies by vehicle and location
The control module receiving data from the left side obstacle detection module has detected corrupted or illogical information on the vehicle's communication network. This affects left side blind spot or parking assist functions.
The most common cause of U0533 (Invalid Data Received From Side Obstacle Detection Control Module Left) is: Faulty left side obstacle detection control module or sensor failure
Typical repair costs for U0533 range from $300 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Left side blind spot monitoring and parking assist will not function. Driver must rely on mirrors and visual checks, increasing risk of collision during lane changes or parking.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0533 to identify the root cause.
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Quick Info
Category
Network
System
Active Safety Systems
Difficulty
Type
Generic (SAE)
Recommended Tools
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