U025E
Lost Communication With Electronic Brake Booster Control Module A
U025E is an OBD-II diagnostic trouble code meaning: Lost Communication With Electronic Brake Booster Control Module A. Common causes: open or short circuit in the module communication circuit, malfunction of the electric brake booster module. Estimated repair cost: $56–278.
Symptoms
- The brake system warning light comes on
- Increased brake pedal force
- Loss of emergency braking assistance functions
- Activating emergency brake operation
- Errors in other CAN bus-related systems
Causes
- Open or short circuit in the module communication circuit
- Malfunction of the electric brake booster module
- Problems with module power supply (blown fuse)
- Corrosion or poor contact in connectors
- Vehicle CAN bus malfunction
How to Fix
- Check fuses related to the brake system
- Inspect the connectors and wiring of the electric amplifier module
- Check the module supply voltage
- Scan the CAN bus for communication errors
- Repair only from an authorized dealer
Related codes
Error U025E by Vehicle Brand
FAQ
What does the U025E code mean?
U025E is an OBD-II diagnostic trouble code that indicates: Lost Communication With Electronic Brake Booster Control Module A
What causes a U025E error code?
The most common causes of U025E include: Open or short circuit in the module communication circuit; Malfunction of the electric brake booster module; Problems with module power supply (blown fuse); Corrosion or poor contact in connectors.
How do I fix a U025E diagnostic trouble code?
To fix U025E: Check fuses related to the brake system. Inspect the connectors and wiring of the electric amplifier module. Check the module supply voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U025E?
Limited driving only, diagnose soon
How much does it cost to fix U025E?
The estimated repair cost for U025E is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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