Safesight SC0301 User Manual - page 12
Manual is about: Back up camera system
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SafesightSC0301‐SC3102Backupcamerasystem
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8.2 Tapping Into The Reverse Tail-light
Toaccessthisyouwillneedtoremovethetaillightofthevehicle.
Onceyouhaveremovedthetaillightofthevehicleyouwilluseavoltmetertodetermine
whichleadsupplies12voltspositivepower.Thisisdonebysettingyourvoltmetertodc
voltsandprobingthewirestodeterminewhichispositiveandwhatgroundis.
Acorrectreadingonthevoltmeterwillindicate+12volts;somevoltmeterswillread
negativevoltage,thismeansthatyouhavethepositiveandnegativewiresreversed.
Note:Thisstepmustbedonewithavoltmeter;guessingorusingatestlightwillyield
incorrectresults.Wereceivemanyphonecallsstatingdefectivemerchandiseand
thisisthesinglelargestmistakewheninstallingabackupcamerasystem.