"Internal Accountability: Non-compliance with the RBA Code of Conduct on slavery and trafficking is taken seriously. It is considered one of the most severe types of nonconformance, and corrective action plans to remedy any identified instances of nonconformance are expected to be implemented at the shortest possible timeline. ... Any deficiencies in the management system, internal and external audits and appropriate actions are logged in our corrective action management system." (p. 4)
Onsemi does *not* seem to support the suppliers ("corrective action plans... *are expected* to be implemented"), but for the "company’s internal manufacturing sites" corrective actions are part of the process.
"Our internal auditors, some of whom are certified by the RBA, perform internal audits against the Code at onsemi manufacturing sites every two years. The audit criteria cover five main areas based on RBA audit protocol, including labor, ethics, health and safety, environment and management systems, and include corrective actions. " (p.4)
This qualifies for a "yes".