U3035
Communication Authentication Signal Invalid Data
U3035 is an OBD-II diagnostic trouble code meaning: Communication Authentication Signal Invalid Data. Common causes: module software mismatch, wiring harness damage. Estimated repair cost: $56–222.
Symptoms
- Limitation of functionality of electronic systems
- Error message on the dashboard
- Problems starting the engine
- Unstable operation of the multimedia system
Causes
- Module software mismatch
- Wiring harness damage
- Problems with the control unit
- Incorrect flashing of electronic modules
- Errors after replacing electronic components
How to Fix
- Check the wiring harness for damage
- Diagnostics of control units
- Software update for all modules
- Checking the compatibility of replaced components
- Repair only from an authorized dealer
Related codes
Error U3035 by Vehicle Brand
FAQ
What does the U3035 code mean?
U3035 is an OBD-II diagnostic trouble code that indicates: Communication Authentication Signal Invalid Data
What causes a U3035 error code?
The most common causes of U3035 include: Module software mismatch; Wiring harness damage; Problems with the control unit; Incorrect flashing of electronic modules.
How do I fix a U3035 diagnostic trouble code?
To fix U3035: Check the wiring harness for damage. Diagnostics of control units. Software update for all modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U3035?
Limited driving only, diagnose soon
How much does it cost to fix U3035?
The estimated repair cost for U3035 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat