1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 231Get this manual
Wiring Diagram Trim Indicator Gauge and Trim Sender Wiring Diagrams
Wiring Diagram For boats equipped with Quicksilver Commander Series side mount remote controlTRIM INDICATOR GAUGE PIN HARNESS
REMOTE CONTROL Rubber Sleeve (Slide over Connection)
TRIM SENDER
ENGINE GROUND
Connect Wires Together with Screw and Hex Nut; Apply Liquid Neoprene to Connection
TO ENGINE Wiring Diagram For boats equipped with Quicksilver IgnitionChoke and Main Harness AssemblyTRIM INDICATOR GAUGE TRIM SENDER BLK (Provided with Ignition Switch Harness) IGNITIONCHOKE SWITCH Rubber Sleeve (Slide over Connection) ENGINE GROUND