U0418
Invalid Data Received From Brake System Control Module A
U0418 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Brake System Control Module A. Common causes: problems with the can bus, abs/esp module malfunction. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- ABS/ESP systems do not work
- Reduced braking performance
- Loss of data on the dashboard
- The car goes into emergency mode
Causes
- Problems with the CAN bus
- ABS/ESP module malfunction
- Wiring harness damage
- Contact corrosion
- Software error in the module
How to Fix
- Check connections and wiring integrity
- Read error codes from the ABS/ESP module
- Check the voltage and resistance in the CAN bus
- Update module software
- Replace the faulty module if necessary
Related codes
Error U0418 by Vehicle Brand
FAQ
What does the U0418 code mean?
U0418 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Brake System Control Module A
What causes a U0418 error code?
The most common causes of U0418 include: Problems with the CAN bus; ABS/ESP module malfunction; Wiring harness damage; Contact corrosion.
How do I fix a U0418 diagnostic trouble code?
To fix U0418: Check connections and wiring integrity. Read error codes from the ABS/ESP module. Check the voltage and resistance in the CAN bus. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0418?
Do not drive — repair immediately
How much does it cost to fix U0418?
The estimated repair cost for U0418 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat