1999 "EE" 90, 115 FFI, 150, 175 V4, V6 FFI Outboards Service Repair Manual, P/N 787024, Page 59Get this manual
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External ECU Sensors
It receives voltage signal from the ECU, and if powerhead temperature exceeds switch limits, the circuit groundsThe ECU will initiate S.L.OW store service code, and t