What Does U0593 Mean?
The control module receiving data from the drive motor control module 'B' has detected invalid or corrupted data on the vehicle communication network. This affects the electric drive motor control system in hybrid or electric vehicles.
Safety Warning
Vehicle may lose propulsion or enter limp mode. High-voltage system requires specialized safety procedures and equipment for diagnosis.
Common Causes
35%
Drive motor control module 'B' internal fault or software error
30%
Damaged wiring harness or corroded connectors at motor control module
20%
Drive motor resolver or position sensor fault providing invalid feedback
10%
Power supply or ground circuit fault at motor control module
5%
CAN bus network issue affecting communication between modules
Diagnostic Steps
1
Step 1: Monitor drive motor control module 'B' live data for motor speed, temperature, and torque request parameters
2
Step 2: Inspect all high-voltage and low-voltage connections at drive motor control module for damage or corrosion
3
Step 3: Verify proper voltage supply and ground circuits to motor control module using multimeter
4
Step 4: Test motor resolver/position sensor signals using oscilloscope or scan tool bidirectional controls
5
Step 5: Perform module reprogramming if communication is stable; replace drive motor control module if data remains invalid
Estimated Repair Cost
$1,000 - $4,000
Parts + labor, varies by vehicle and location
The control module receiving data from the drive motor control module 'B' has detected invalid or corrupted data on the vehicle communication network. This affects the electric drive motor control system in hybrid or electric vehicles.
The most common cause of U0593 (Invalid Data Received From Drive Motor Control Module "B") is: Drive motor control module 'B' internal fault or software error
Typical repair costs for U0593 range from $1,000 to $4,000, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may lose propulsion or enter limp mode. High-voltage system requires specialized safety procedures and equipment for diagnosis.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0593 to identify the root cause.
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Quick Info
Category
Network
System
Electric Drive Motor System
Difficulty
Type
Generic (SAE)
Recommended Tools
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