Mercury Optimax 200/225 from year 2000 Service Manual., Page 621Get this manual

Mercury Optimax 200/225 from year 2000 Service Manual., Page 621

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POWER TRIMDESIGN II
NOTE: 5VDC reference voltage at the ECM can be monitored by the Digital Diagnostic TerminalVoltage should be VDC 0.1 VDCAny other voltage indicates defective ECMIf ECM refere