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Always prioritize safety. If an engine fault triggers a reduction in power or a warning horn, return to dock at idle speed and diagnose before your next trip.
| Code | SPN | FMI | Description | |------|-----|-----|-------------| | 99-1 | 2000 | 9 | SmartCraft CAN bus – missing data from ECU | | 99-2 | 2001 | 2 | Gauge network – no response from tachometer | | 99-3 | 2002 | 12 | Faulty SmartCraft junction box | | 100-1 | 630 | 2 | ECU internal memory error | | 100-2 | 628 | 12 | Injector driver chip fault (ECU) | mercury smartcraft fault codes list
Your SmartCraft system provides different ways to access these codes depending on your helm setup: Mercury Smartcraft Gauges Operation Always prioritize safety
: The engine uses audible signals to alert you to issues even if you aren't looking at the gauge. A single beep typically means "all systems clear," while a continuous tone or a repeating series of beeps indicates a fault. A single beep typically means "all systems clear,"
Return for service soon; check battery health and charging system. Overtemperature (Critical) : Engine is overheating.