1、 Power cord. The power cord is usually located in the wiring harness inside the decorative panel below the steering wheel and in the wiring harness of the central electrical box. It can also be directly connected to the positive pole of the battery. We can remove the car key, ground one end of the test pen, and then find the thickest wire in the wiring harness. The other end of the test pen is at the connector of this wire for testing. If the test pen light is on, it indicates that this wire is a power cord.

　　2、 Cut off the oil and electricity lines. The fuel cut-off point is connected in series to the positive wire of the oil pump, and can generally be found in the fuel tank, left and right front door wiring harness, and central electrical box. We found thicker wires in the wiring harness and tested them using the same method as checking the power cord. Then turn the incineration switch to the "ON" position. When the car is not started, the line will have a positive current of about 3 seconds, and then it will return to a dead state. After starting the car, one end of this line will be positively charged, so this line is the positive pole line of the oil pump.

　　3、 ACC cable. The ACC cable is usually in the same bundle as the power cable. It is the basis for the host to determine whether the vehicle is in the starting state. Let's first find the thicker wire in the harness of the incineration switch, or use a test pen to test in the same way: turn the incineration switch to ACC or ON position, and the light of the test pen will be on at this time; When the incineration switch is turned off, the light will go out. If this operation is met, then this line is the ACC line.

　　Generally, when purchasing a GPS locator, a detailed manual is included, and everyone can install the device according to the content of the manual. Swad has installation sites throughout the country. If you really don't understand the circuit, you can directly drive the car to the site and ask the installation technician to help you install it, so as not to make mistakes and affect the equipment and the car itself.

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