Page 359 - REPOWER REFERENCE GUIDE (2020)

Instrumentation and Controls
Quicksilver Instrumentation Wiring Diagrams

Typical Wire Color and Usage
NOTE: Color codes listed below do not apply to fuel injection system harnesses and may not apply to current production
harnesses in all cases.
Color Code and Abbreviations Where Used
Black (BLK) All grounds
Brown (BRN) Reference electrode—MerCathode
Orange (ORN) Anode electrode—MerCathode
Light blue/White (LT BLUE/WHT) Trim up
Gray (GRY) Tachometer signal
Green/White (GRN/WHT) Trim down
Tan (TAN) Water temperature sender to gauge
Light blue (LT BLU) Oil pressure sender to gauge
Pink (PNK) Fuel gauge sender to gauge
Brown/White (BRN/WHT) Trim sender to gauge
Purple/White (PUR/WHT) Trim ‑ Trailer switch
Red (RED) Battery voltage (B+)
Red/Purple (RED/PUR) Protected (fused) wires from battery
Orange (ORN) Alternator output
Purple (PUR) 12‑volt switched power
Yellow/Red (YEL/RED) Cranking
NOTE: Refer to diagrams in Section 12 ‑ Diagrams.

90-8M0149179 eng NOVEMBER 2018 © 2019 Mercury Marine Page 9D-15