30400-ZY1-003 Ign Cont Module - Overview. The 30400-ZY1-003 Ign Cont Module is an essential OEM ignition control module designed to support the ignition system of Honda marine engines. This module synchronizes the ignition timing, playing a critical role in ensuring reliable ignition performance and smooth engine operation. The part is crafted to meet strict factory specifications, which guarantee seamless integration with existing components in your Honda engine, maintaining optimal performance