1998 DeVille: front power windows work ok left front window switch

The system utilizes a single circuit breaker instead of fuses. According to the schematic, switches provide 12 volts of power and ground to the window motors in opposite polarities, allowing the windows to move up and down. Troubleshooting should begin with the driver side front window, as there are fewer components to trace at that location. A PDF file containing a detailed description of the system is available for reference, which may assist in troubleshooting.

The electronic schematic in question outlines a window control system featuring a single circuit breaker, which serves as the primary protective device against overcurrent. This design eliminates the need for fuses, simplifying the system's maintenance and operation. The circuit is powered by a 12-volt supply, which is distributed to the window motors through a series of switches. These switches are strategically configured to reverse the polarity of the voltage supplied to the motors, enabling the windows to either ascend or descend based on the user's input.

The troubleshooting process is recommended to commence with the driver side front window due to its relatively straightforward wiring and fewer components involved. This approach allows for efficient signal tracing and identification of potential faults. The schematic should be carefully examined to ensure that all connections are secure and that the switches are functioning correctly.

To assist in the troubleshooting efforts, a comprehensive PDF document detailing the system's architecture and operational principles is available. This document can serve as a valuable resource for understanding the interactions between the various components and the overall functionality of the window control system.

In summary, the window control system's design effectively utilizes a circuit breaker and polarity-reversing switches to control motor operation, with an emphasis on ease of troubleshooting and maintenance through the availability of detailed documentation.There is only one circuit breaker (no fuses) for the system. If you can follow the schematic, it shows that the switches are used to supply Power (12 volts) and Groundto the window motors in opposite polarities to make the windows go up and down. So we will have to do some troubleshooting by tracing the signals when the switches are used in each direction.

I would start on the driver side front window, as there are less things to trace at that point. I also want to send you the description of the system, as that might help with troubleshooting. This is a PDF file (2 pages long) that you should be able to view on your computer and print. Ask-a-doc Web sites: If you`ve got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers. Justanswer. com. Traffic on JustAnswer rose 14 percent. and had nearly 400, 000 page views in 30 days. inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent. I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time.

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Charles Walnut Creek, CA Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank. you do indeed know your stuff. Jim Castleberry, FL 🔗 External reference