What Does U059B Mean?
The vehicle's control modules are receiving corrupted or out-of-range data from the hybrid battery pack sensor module. This module monitors critical battery parameters like voltage, current, temperature, and state of charge.
Safety Warning
May result in inaccurate battery state of charge readings, unexpected loss of power, or hybrid system shutdown. Vehicle may enter limp mode or fail to start if battery management system cannot verify safe operation.
Common Causes
35%
Failed hybrid battery pack sensor module with internal circuit failure or sensor malfunction
25%
Corroded or damaged connectors and wiring between battery sensor module and vehicle network
20%
Individual battery cell failure or imbalance causing sensor to report inconsistent data
12%
Software glitch or calibration error in battery sensor module firmware
8%
Poor ground connection or shield wire damage causing electromagnetic interference
Diagnostic Steps
1
Step 1: Review live data from hybrid battery sensor module to identify which specific parameters (voltage, current, temperature, SOC) are showing invalid readings
2
Step 2: Perform high-voltage safety procedures (isolate high voltage system per manufacturer protocol) before inspecting battery pack connections
3
Step 3: Inspect battery sensor module connectors and wiring for corrosion, damage, or loose connections; check all high-voltage interlocks
4
Step 4: Use manufacturer diagnostic software to perform battery cell voltage balance test and capacity test to rule out battery pack issues
5
Step 5: Check for software updates for battery sensor module; if all tests pass but code persists, replace battery sensor module
Estimated Repair Cost
$400 - $3,500
Parts + labor, varies by vehicle and location
The vehicle's control modules are receiving corrupted or out-of-range data from the hybrid battery pack sensor module. This module monitors critical battery parameters like voltage, current, temperature, and state of charge.
The most common cause of U059B (Invalid Data Received From Hybrid Battery Pack Sensor Module) is: Failed hybrid battery pack sensor module with internal circuit failure or sensor malfunction
Typical repair costs for U059B range from $400 to $3,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May result in inaccurate battery state of charge readings, unexpected loss of power, or hybrid system shutdown. Vehicle may enter limp mode or fail to start if battery management system cannot verify safe operation.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U059B 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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