It is the input, the other pin is the output and should measure ~ 0V more on that in the next step.
You would use such a slot for devices such as an alarm system or our charger that should be able to charge a phone while the car is parked. If a slot's pin shows 12V this means 2 things: First measure without the key plugged in. Connect the negative wire of your multimeter to your cars body, set it to 20V DC and measure the voltage of both pins. Open it and use your fuse removal tool to remove one fuse at a time.
#Zipcar add driver cost manual
Your owners manual will tell you were it is. It can be under the hood or inside your dashboard or both, many modern cars have more than one fuse box. The first thing you need to do is locate your fuse box. U : The maximum Voltage loss you want to have in your wiring ( I recommend 0,5 V)Ī : the right cross section in mm^2 (for americans there are tables to find the AWG equivalent) L : the total length of the wires in meters ( in this case from the fuse box to your grounding) I : the current that will flow through your cables A simple formula to determine the size you need is this one: If the wires are to thin they overheat and can cause a fire.
When you picked everything up go to your car and start working.Ĭhoosing the correct wire size is very important.
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