In the process of using the car, we may often encounter the situation that the wiper nozzle does not produce water, so what is the reason why the wiper does not have glass water spraying? And how should it be solved? Today, let's talk about the common fault causes and solutions of the automotive wiper water spray system.
The wiper spray system of the automobile is generally composed of control switches, glass water, liquid storage tanks, waterjet motors, fuses and water pipes. That is to say, the damage of one of the parts above will cause the vehicle to have a failure phenomenon in which the wiper nozzle does not produce water. Let me tell you about the most common causes of failure, that is, the most vulnerable parts.
The reasons why the wiper does not spray water and the solution
First, the windshield under the wiper nozzle is blocked, due to a long period of use, the inside of the sprinkler is generally piled with scale, or contaminated with impurities such as dust, resulting in a blocked fault phenomenon. When solving, we only need to find a pin to pass through the nozzles on the left and right sides. However, it should be noted that when processing, try not to shake the nozzle nozzle up or down or left and right, so as not to change the original spray angle, resulting in glass water can not be sprayed correctly on the windshield. If you accidentally change the angle of the spray in the process of operation, you only need to readjust it, it is not very complicated, and you can do it yourself.
The second is to control the fuse and relay of the water spray motor to work, and after they are damaged, they will cause the water spray motor to have no power supply, resulting in the phenomenon of inability to spray water. And when you press the switch, you can't hear the sound of the spray motor working in the car. The fuse can be inspected using a test light or a multimeter during processing, and if it is damaged, it can be solved by replacing it directly.
Third, the water spray motor itself is damaged, in the detection can use the test light or multimeter to check the wire on the connector, if there is no problem with the power supply, grounding, signal line, you need to replace the water spray motor can be solved. In addition, you can also use the detector to test the action of the spray motor, if there is no problem with the positive and negative poles and signal lines on the motor, the spray motor itself is damaged, and the solution is to replace the new water spray motor. It should be noted that if there are problems such as virtual connection and short circuit in one of the wires in the power supply, grounding and signal, you need to repair the wiring harness first to solve it.
Fourth, the switch that controls the work of the spray motor is damaged, and when the contact contact inside the switch is not good, it will lead to the inability of the spray motor to work, and the fault phenomenon that is manifested is that it cannot spray water. Therefore, in the detection of the diagnostic instrument can be used to read the data flow of the water spray motor, if the open switch wiper data flow display is closed or no change, it is the switch damaged, the solution is to replace the new wiper spray water combination switch.
Fifth, the lack of glass water, this one of the causes of the failure is a common sense problem with the car, so it is said at the end. For models that do not have wiper water level tips on the driving instrument, when the vehicle lacks wiper water, you can first open the lid to check whether the glass water is enough, if there is a lack, you only need to make up for it. In addition, for some Volkswagen Audi models, it is impossible to use the wiper washing system when the cover is opened, which is a special function setting, not a fault phenomenon, and I hope that everyone will not mistakenly think that it is a failure. If you encounter such a situation, you only need to close the cover and spray water on the wiper to work normally.
The above are the common reasons and solutions for the inability of automotive wiper water spray systems to spray water, namely nozzle blockage, fuse fuse fused, motor damage, switch contact ablation and lack of glass water. I hope to be able to help the majority of car friends and reduce the troubles of daily use and car maintenance!