U2520
Invalid Data Received From Active Safety Control Module 1 On High Speed CAN B
U2520 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Active Safety Control Module 1 On High Speed CAN B. Common causes: active safety module malfunction, damage to can bus wiring. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Disabling active safety systems
- Error message on the dashboard
- Problems with other systems using the CAN bus
- Unstable operation of driving assistants
Causes
- Active safety module malfunction
- Damage to CAN bus wiring
- Module power problems
- Corrosion of contacts or connectors
- Module software failure
How to Fix
- Check the integrity of the CAN bus wiring
- Check the power and ground of the active safety module
- Inspect connectors for corrosion or damage
- Read extended trouble codes using a scanner
- Repair only from an authorized dealer
Related codes
FAQ
What does the U2520 code mean?
U2520 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Active Safety Control Module 1 On High Speed CAN B
What causes a U2520 error code?
The most common causes of U2520 include: Active safety module malfunction; Damage to CAN bus wiring; Module power problems; Corrosion of contacts or connectors.
How do I fix a U2520 diagnostic trouble code?
To fix U2520: Check the integrity of the CAN bus wiring. Check the power and ground of the active safety module. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U2520?
Do not drive — repair immediately
How much does it cost to fix U2520?
The estimated repair cost for U2520 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat