Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 287Get this manual

Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 287

Troubleshooting the "Up" Circuit (When "Trailer" Circuit Works) Trim engine to uU"Down" poslUonDisconnect purple-white wire from black wire wilh purple sleeve, al Point 6Connect black Voltmeter lead to Point and red lead to purple-white wire at Point 6Depress "Up" trim swi tchBattery voltage should be indicatedBattery Voltage Indlclted:N Voltage Indicated:

Reconnect purple-while wire and black wire with purple sleeve, al Point 6Disconnect blue-while wire from black wire with blue sleeve, al Point 12
Conna:1 red Voltmeter lead to PointS
Connect red Voltmeter lead to black wire wUh blue sleeve, at Point 12Depress "Up" trim switch and check lor battary voltag eBattery Voltage ndicated:

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