P0564Audi Q8Years: 1996 - 2026
Cruise Control Multi-Function Input A Circuit Malfunction
Reviewed by ASE Certified Technician
What does this mean?
Code P0564 indicates a problem with the vehicle's charging system voltage.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Audi Q8 models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
Advertisement (In-Article)
Common Causes
Faulty alternator or voltage regulator
Weak or failing battery
Damaged, chafed, or broken wiring harness
Corroded or loose electrical connector
Symptoms to Watch For
- Check Engine Light is illuminated
- Battery draining or low voltage warning
- Engine stalling or dying unexpectedly
- Difficulty starting the engine
- Rough or unstable idle