What Does U0598 Mean?
The vehicle's network has detected corrupted or illogical data being transmitted from the secondary AC to DC converter control module. This module typically manages high-voltage AC power conversion to DC for hybrid/electric vehicle systems.
Common Causes
35%
Faulty AC to DC converter control module B with internal corruption or component failure
30%
Damaged or corroded wiring harness and connectors between converter module B and communication bus
20%
Software glitch or outdated firmware in converter control module B
10%
Poor ground connection at converter module B causing signal interference
5%
CAN bus network fault affecting multiple modules
Diagnostic Steps
1
Step 1: Monitor live data stream from AC to DC converter module B to identify what specific data parameters are invalid or out of range
2
Step 2: Inspect wiring harness and connectors for converter module B for damage, corrosion, or loose connections; check ground connections
3
Step 3: Use manufacturer scan tool to perform communication tests and check for software updates available for converter module B
4
Step 4: Test CAN bus network integrity with oscilloscope or multimeter to verify proper voltage levels (CAN High ~3.5V, CAN Low ~1.5V)
5
Step 5: If all wiring and communication tests pass, replace AC to DC converter control module B and reprogram if necessary
Estimated Repair Cost
$500 - $2,500
Parts + labor, varies by vehicle and location
The vehicle's network has detected corrupted or illogical data being transmitted from the secondary AC to DC converter control module. This module typically manages high-voltage AC power conversion to DC for hybrid/electric vehicle systems.
The most common cause of U0598 (Invalid Data Received From AC to DC Converter Control Module "B") is: Faulty AC to DC converter control module B with internal corruption or component failure
Typical repair costs for U0598 range from $500 to $2,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May result in reduced hybrid system performance or failure to charge high-voltage battery. Vehicle may enter limp mode or experience reduced power output.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0598 to identify the root cause.
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Quick Info
Category
Network
System
Hybrid/Electric Powertrain
Difficulty
Type
Generic (SAE)
Recommended Tools
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