Nissan Repair: jumper wires, jumper wires, jumper cables

Question
hi, first of all i like to thank you for your time & sharing your knowledge to others.
sir my question is how to use jumper wires i tried to find on internet and books but i was unsucsseful, can you please give me some examples of how to use jumper wires.
thank you & have a wonderful day

Answer
I am wondering which application you are asking about here.  Jumper cables would be used to provide power to another car by using the good battery to power the dead battery.  Hook up the positive cables to the + side of the battery and the negative cables to the - side of the battery.  Run the good car at 2000 RPMs and wait a few minutes to get a charge on the dead battery.

Second, if you want to use jumper wires to go around an open circuit or tie into an existing one you would first find out if the circuit you were working on had an isolated ground.  This is important since if the circuit has an isolated ground you could damage the electronics in that circuit or overload it.  Remember that since the mid sixties American automobiles have a negative ground and most of the circuits tie to the chassis ground.  That is, the negative circuit for most of the electrical items on an automobile tie to the body since most newer vehicles are unibody construction.  So, first see that you have anough amperage in the circuit that you want to tie jumpers to.  Then, make sure that you solder the connections and use heat shrink tubing to eliminate the possibility of a hot wire getting to ground.  Make really sure that you ground your component correctly with a good connection using a star washer to get a good bite on ground.  Also, make sure that you look on what is on the other side of the body to insure that you will not drill into a gas line or the like.  I like to use available grounds whenever they are available so if one is close you can unscrew the one that is already there and put your wire on the same bolt.  An example of a jumper wire I have experienced was an 1985 Mustang GT that had a defective temperature gauge.  Well, it turned out it was not eh gauge or the sensor.  There was a defect in the factory wiring harness and I had to make a jumper to go around the defect in the wiring and that cured the problem.