Park your vehicle on a dry pavement and turn on the windshield washer for a few seconds.
Then it is important to carefully examine all other cables and hoses for damage, including electric wires for the windshield washer pump.ĭiagnosis: You don’t have to disassemble the engine compartment to check for a leaking hose in your Prius. Rodent Damage: If bite marks or the like are discovered, there is a high probability that a rodent has let off steam in the engine compartment of your Prius. You can access the pump by following a few simple steps, as shown in the video. You don’t necessarily have to visit a workshop to replace the windshield washer pump on your Prius. Video: Replacing washer pump in Toyota Prius If the multimeter reads very low or zero volts, it indicates a fault in the wiring or electrical connection – all electrical connectors and wires that feed power to the pump should be inspected for damage. The multimeter should read around 12 volts when you switch on the windshield washer, which indicates that the pump has failed in your Prius and needs to be replaced. This can be done by removing the electrical connector from the pump and connecting it to a multimeter. If the fuse is not blown, check if the pump is getting any power. If you do not hear whirring sound of the pump when you turn on the windshield washer system on your Toyota Prius, you should first check the fuse for the pump. If there is no sound, then it means the pump is not working in your Prius. You should hear the whirring of the pump.While standing outside your Prius, switch on the windshield washer.Turn on your vehicle and open the driver’s door or roll down the window.You can do a quick diagnosis by performing a noise test. You can access the nozzles by following a few simple steps, as shown in the video. You don’t necessarily have to visit a workshop to replace the windshield washer nozzles on your Prius. Video: Replacing washer nozzles in Toyota Prius If you do hear the whirring sound coming from the front of your Prius, the pump is working and the culprit is most probably clogged nozzles. If there is no sound, then it means the pump has failed or there is no power to the pump. You should hear the whirring of the pump. Now, stand outside and switch on the windshield washer. Switch on the vehicle and turn down the driver’s door window. The easiest way to check if the pump is working is by doing a noise test. With each pumping process, a larger area is wetted with washer fluid, at the same time, however, the finer nozzles tend to clog faster.ĭiagnosis: Before you decide on replacing the nozzles, you must rule out any problem with the washer pump or the hoses. However, modern cars are equipped with so-called “fan nozzles” or “micro-emitters” which produce a wider and finer spray jet.
FROZEN WINDSHIELD WASHER FLUID DRIVERS
In older vehicles, drivers could easily clean the nozzles themselves by inserting a fine needle into the holes without any effort. The impurities can then be collected by the rainwater running off, which then gets caught in the nozzles and gradually clogs them. They are located near the bottom of the windshield, where dead insects, dust, pollen and limescale are often deposited. Clogged nozzles are often the reason why the windscreen washer system does not work on Prius.
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