Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 133Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 133

WIRING DIAGRAMS
Water Temperature Gauge
WIRING DIAGRAM A
Use this wiring diagram when using separate light switch for instrument lighting

- PURPLEConnect to Positive (+) 12 VoltLight Switch Wire12 VoltPosition Light Bulb to the Switched PositionBLACKConnect to Negative (-) GroundTANConnect to TAN lead located at the tachometer receptacle on Commander Side Mount Remote Control or TAN lead coming from Accessary IgnitionChoke Assembly

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