What are the reasons for the intermittent failure of the Sylphy wiper?
3 Answers
The reasons for the intermittent failure of the Sylphy wiper include a blown fuse, low voltage, and the wiper blade not being able to reset itself. Below are the specific explanations for the intermittent failure of the Sylphy wiper: Blown fuse: Loose or poor contact of the wires; damage or poor contact of the wiper control switch; open circuit of the armature winding or gear reducer. Replace with a high-quality fuse. Low voltage or poor switch contact: Dirty contact surface between the wiper blade and the glass; poor lubrication of the motor bearings and gear reducer gears; poor contact of the brushes or weak springs. Increase the voltage and promptly repair the poor switch contact. Wiper blade cannot reset itself: This means the wiper motor cannot stop at the automatic stop position, mostly due to damage to the control switch, poor performance of the motor automatic resetter, or an open circuit in the connecting wires. Repair the wiper motor promptly and check it regularly to avoid losses.
Encountering intermittent failure of the Sylphy's wipers is a fairly common issue. Having repaired many vehicles, I find such faults mostly stem from wiper motor wear or control relay malfunctions. If the motor internals overheat or experience excessive wear, the wiper movement becomes erratic. Next, check the fuse box—sometimes excessive current causes fuse burnout, or loose connector plugs lead to poor contact. Don’t overlook the wiper linkage mechanism; insufficient lubrication can cause jamming, resulting in intermittent failure. For frequent usage, also inspect the rotary switch contacts for oxidation, as this affects signal transmission. For safety, it’s recommended to visit a professional shop for a thorough inspection immediately upon discovery—don’t wait for rainy-day emergencies. Regular maintenance, including cleaning the wiper system and applying lubricant, can prevent many such issues.
My Nissan Sylphy had this annoying issue with the wipers working intermittently, which took a long time to troubleshoot. The cause was usually an old rotary switch—when the button contacts wore flat, they made poor contact, leading to signal interruptions. I also encountered a loose fuse box position, which would disconnect with heavy vibrations; a simple tightening fixed it. If the wiper motor makes strange noises, it indicates internal gear or motor failure, and it’s prone to shutting down when temperatures rise. If you’re DIY-ing, first check if the wiring connectors are dirty or loose—cleaning them might provide a quick fix. But for driving safety, always pull over in rainy weather to inspect, never push through. Lastly, be cautious when modifying circuits to avoid voltage instability issues.
