What is the reason why three windows of the Reiz cannot be controlled?

[DeAdriel]

The main switch cannot control other car windows because there is a break in the control circuit or poor circuit contact. Press the corresponding buttons on each door and the main driver's side simultaneously, raise the window to the top and hold for a few seconds, then lower it to the bottom and hold for a few seconds. Window Regulator: It is the lifting device for car door and window glass, mainly divided into two categories: electric window regulators and manual window regulators. The electric window regulators used in cars are mostly composed of a motor, reducer, guide rope, guide plate, and glass mounting bracket. Switch: The switch consists of a master control switch and sub-control switches. The master control switch in the electric window control system is used by the driver to operate the electric window system as a whole, generally installed on the left front door handle or near the gear lever; the sub-control switches are installed in the middle of each door or on the door handles, used by passengers to operate the windows.

[MacCharlotte]

I remember once helping a friend with a window issue on their Reiz. All three windows stopped working simultaneously, which is often caused by a faulty master control switch module. That module is installed by the driver's door, and the buttons can wear out or internal circuits may short-circuit, leading to malfunctions. Additionally, wiring problems like blown fuses are common – check the 15-amp fuse related to the windows in the fuse box under the dashboard and replace it if it's burnt out. Another possibility is a loose or corroded door wiring harness causing poor contact. It's rare for multiple window regulator motors to fail at once unless there's unstable power supply. I recommend visiting a professional repair shop promptly to test the current pathways with a multimeter. Don't attempt DIY disassembly and complicate the issue – safety first! Stuck windows can really affect your daily driving mood.

[VonMarcus]

I've encountered the issue of non-functioning windows three times while driving my Reiz. Once, it was due to the main control switch getting dirty, with water corroding the contacts—cleaning it fixed the problem. A blown fuse is another factor; it's located near the foot pedal area, and replacing it with a new one costs just ten yuan. Loose wiring connectors can also easily cause multiple windows to stop responding, especially on bumpy roads. I've learned to remove the door panel myself to check if the connectors are secure and clean them with an eraser. The window regulators need regular lubrication; adding some silicone-based oil can reduce sticking. If all else fails, don't hesitate to take it to the 4S shop for inspection. Don't skimp on repairs to avoid more serious electrical faults—safe driving is the top priority.

[LilyRose]

Abnormal control of three windows on the Reiz may stem from a faulty Body Control Module (BCM), interrupted or poor-contact wiring managing window signals. Worn-out main switch buttons on the door can cause signal transmission failure, triggering a chain reaction. Power system fluctuations, such as low battery voltage, may also interfere with operations. For DIY troubleshooting, use simple tools to test the conductivity of switch buttons—often, oxidized contacts are the primary culprit. From another perspective, system design flaws like CAN bus issues could also be a factor, though less common. Address promptly to avoid accident risks.