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Discussion Starter · #1 ·
Hey there, so i just bought a 550 s4 put a brand new battery in it and turn the key and nothing is there a trouble shoot on what i am missing nothing happens it’s weird no lights nothing on the dash where should i look i check the fuses already they are fine what’s the next thing i should check

thank you
 

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Have you tested the key switch?
 

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So what did the voltage read at the switch? How does it compare to the battery? Don't assume they are the same as there can be a voltage drop across the wire.

Many times a voltage drop test is a better test method than checking static voltage.

Only need one strand of the copper wire to register battery voltage during static test, but apply a load and the single wire will exhibit a voltage drop. I've found "voltage drop test" to be very helpful in pinpointing electrical issues.
 
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