1990 Suzuki Samurai Windows Won't Go Up Or Down

Troubleshooting Common Window Issues in Your 1990 Suzuki Samurai and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
36% chance it's the
Fuse, Relay or Electrical System
0%
20% chance it's the
Window Motor
0%
24% chance it's the
Window Regulator
0%
20% chance it's
Something else
The most common reasons a 1990 Suzuki Samurai window won't go up or down are window's electrical system such as a fuse or relay, a broken window motor, or a broken window regulator.
  • Fuse, Relay or Electrical System: A blown fuse or a faulty relay can disrupt the electrical circuit, causing components to fail or operate intermittently.
  • Window Motor: A faulty window motor or a broken window regulator can prevent the window from moving up or down properly.
  • Window Regulator: A faulty window regulator can cause the window to become stuck or operate erratically due to worn gears or a broken cable.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 1990 Suzuki Samurai window won't go up or down?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

What are the steps to diagnose the window issue in a 1990 Suzuki Samurai?

To effectively diagnose a power window issue in a 1990 Suzuki Samurai, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex components. Start by ensuring that the ignition is in the "on" position and that the window lockout switch is not engaged, as these basic checks can often resolve the issue. Next, access the window switch by removing the door panel and use a multimeter to verify that power is reaching the switch. If power is absent, investigate potential blown fuses or wiring breaks. Once power is confirmed, test the functionality of the switch itself by checking the signal wires while operating the switch. If the switch is functioning correctly, trace the wiring to the window motor to ensure there are no breaks and that power is reaching the motor when activated. If the motor does not respond, perform a direct test using a battery to determine if the motor is faulty. Additionally, inspect the mechanical components such as the window regulator and cables for any signs of damage or misalignment. Finally, always check the fuse box for any blown fuses that could indicate underlying issues. By following this structured approach, you can efficiently identify the root cause of the power window malfunction in your Suzuki Samurai.

What are the common causes for the windows not functioning on a 1990 Suzuki Samurai?

When dealing with non-functioning power windows in a 1990 Suzuki Samurai, it's essential to consider several common problems that could be at play. One of the primary culprits is the power window regulator, which can wear out over time, leading to slow or noisy operation. If the motor is still running but the window remains stationary, the regulator may need replacement. Another frequent issue is the power window motor itself, which can fail due to wear and tear, resulting in sluggish movement or complete stalling. If there’s no sound when the switch is activated, this could indicate a burned-out motor. Electrical problems are also common; a blown fuse or faulty relay can cause all windows to stop working, while damaged wiring, particularly where it passes into the door, can disrupt power flow. Additionally, a malfunctioning window switch can prevent the motor from receiving the necessary power. Mechanical issues, such as broken window tracks or loose cables within the regulator, can hinder window movement, often accompanied by unusual noises. Environmental factors, like snow and ice, can also impede window operation, making it crucial to ensure that the glass is free from obstructions. Lastly, while less common, damaged auto glass can lead to operational issues, so it's worth checking for any signs of physical damage. By systematically diagnosing these potential issues, DIYers can effectively troubleshoot and resolve the problems affecting their Suzuki Samurai's power windows.

How urgent is it to repair the non-functioning windows on a 1990 Suzuki Samurai?

Repairing the non-functioning windows on a 1990 Suzuki Samurai should be considered a priority due to the various safety and functional implications involved. When windows are stuck in the down position, they expose the vehicle's interior to weather elements and increase the risk of theft, while windows stuck in the up position can hinder emergency exits during critical situations. Additionally, the inconvenience of not being able to open windows for ventilation or to use drive-thru services can significantly detract from the driving experience. Ignoring these issues can lead to more severe problems, such as broken window tracks or malfunctioning motors, which may result in costly repairs down the line. Furthermore, damaged window seals can create annoying rattling noises that not only affect comfort but can also lead to further deterioration of the vehicle's components. Therefore, addressing window malfunctions promptly is essential to maintain the Suzuki Samurai's safety, functionality, and overall condition, making it a worthwhile DIY project for any owner.

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