B3A00 — A/C Refrigerant Distribution Valve Actuator C Stuck/Open

B3A00: A/C Refrigerant Distribution Valve Actuator C Stuck/Open — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

A/C Refrigerant Distribution Valve Actuator C Stuck/Open. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Body

Also written as: B3A00-00, B3A0000 (some scan tools add the fault-type byte, e.g. -00).