P0556Tesla Model-yYears: 1996 - 2026
Vehicle Speed Controls and Idle Control System Malfunction (P0556)
Reviewed by ASE Certified Technician
What does this mean?
Diagnostic trouble code P0556 indicates a generic malfunction within the vehicle speed controls and idle control system.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Tesla Model-y 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.
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Common Causes
Damaged, chafed, or broken wiring harness
PCM/ECM software needs update (TSB)
Symptoms to Watch For
- Check Engine Light is illuminated