What Does U0588 Mean?
The receiving control module is detecting invalid or corrupted data from the Transmission Fluid Pump Module over the vehicle network. This affects auxiliary transmission pump operation, typically found in hybrid or electric vehicles with electrically-driven transmission pumps.
Common Causes
35%
Failed transmission fluid pump control module with internal circuit failure
25%
Damaged wiring harness between pump module and vehicle network, often exposed to heat and fluid
20%
Power supply issues to pump module including blown fuse or relay failure
15%
Transmission fluid contamination or low level causing pump strain and module fault
5%
Software calibration error or version mismatch in pump control module
Diagnostic Steps
1
Step 1: Check transmission fluid level and condition; contaminated or low fluid can cause pump module faults
2
Step 2: Verify power supply to transmission fluid pump module; check fuse, relay, and voltage at module connector
3
Step 3: Inspect pump module connector for corrosion, fluid contamination, or damaged pins
4
Step 4: Use scan tool to monitor pump module operation and commanded versus actual pump speed
5
Step 5: Check for Technical Service Bulletins regarding pump module software updates or known issues with specific vehicle applications
Estimated Repair Cost
$300 - $1,500
Parts + labor, varies by vehicle and location
The receiving control module is detecting invalid or corrupted data from the Transmission Fluid Pump Module over the vehicle network. This affects auxiliary transmission pump operation, typically found in hybrid or electric vehicles with electrically-driven transmission pumps.
The most common cause of U0588 (Invalid Data Received From Transmission Fluid Pump Module) is: Failed transmission fluid pump control module with internal circuit failure
Typical repair costs for U0588 range from $300 to $1,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Moderate concern. Transmission may not have adequate lubrication during certain operating conditions, particularly in hybrid mode. Avoid extended operation until diagnosed to prevent transmission damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0588 to identify the root cause.
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Quick Info
Category
Network
System
Transmission / Hybrid Drive System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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