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Originally Posted by zagrot
test the relay if you think it is faulty. remove it and power the internal coil with 12volts; use a multimeter to check for continuity on the swiched contacts. sometimes there is a diagram printed on the relay, but if there is not use the continuity meter to find the two pins that have continuity and a decent ammount of resistance; this will be the coil, but low resistance is a set of normaly closed contacts.
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does there have to be power to the coil to read continuity between the two pins?