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Mazda Miata Window Switch

How to Pinpoint the Problem with Mazda Miata Window Switch

When your Mazda Miata window switch isn't working, pinpointing the source of the problem is not that hard. You only need the right tools to figure things out. Perhaps the most common problem encountered with a window switch is dirty contacts. Because of the accumulation of dust and other particles, the current couldn't get through to the contacts, causing a slow opening or closing of the windows or no movement at all. Sometimes, though, wear and tear just takes its toll on the switch and renders it no longer functional. But to make sure you do not to throw away a switch that's still good on the inside, here are simple tests to confirm that they are no longer functional.

Use a voltmeter.

By using a voltmeter, you will be able to determine the voltage coming from terminal 4 to the ground and from terminal 5 to the ground is correct. To do this test, simply remove the faulty Mazda Miata window switch from the door and turn it to the "open" position. Then, attach the voltmeter to the switch plug. Check if it is at 12 volts. If it is not, the power and the wires to the switch are not quite sufficient to power up the opening or closing of the window.

Use an ohmmeter.

Another test that goes hand in hand with the use of the voltmeter is using an ohmmeter to determine the resistance of the various terminal combinations. Put the switch in the "open" position and attach the ohmmeter to different terminal combinations. Take note if there is a low resistance from terminals 1 to 4 and from 2 to 3. Next, set the switch to its "off" position and then attach the ohmmeter to the varying terminals. Observe if there is a low resistance from terminals 1 to 3 and from 2 to 5. Otherwise, your switch may be dirty or may have rust.

Use a test light.

A test light is a simple electronic test equipment that is used to determine the presence or absence of electric voltage. Use this to trace the electricity that flows from the switch to the motor. If the flow of electricity that is reaching the motor is continuous, there is no problem with the switch. You may want to check your window regulator; if the assembly is stuck, it may be the cause of a non-moving window.

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  • Keeping Mazda Miata Window Switch Working 04 March 2014

    To keep the windows of your Mazda Miata working, all components of the window assembly must be in great shape. But you don't need to replace the parts right away; the problem may sometimes simply lie in a faulty switch. Here are a few tips you may need to be able to extend the useful life of your Mazda Miata window switch.

    • Clean the contacts.
    • Having dirty contacts can interfere with the operation of the switch. Because of this, you will have difficulty in opening or closing your windows. To remove the dirt buildup, disassemble the switch and clean the contacts is by applying a small amount of rubbing alcohol with a cotton swab. After this, spray on some electronic contact cleaner on the electrical parts to reduce future dirt and dust buildup.
    • Remove corrosion from contacts.
    • As they are made of metal, the switch contacts are highly prone to corrosion and oxidation. Because of this, the flow of current to the motor is disrupted. And if these are left unattended, they will cause the switch to completely fail. Use a contact cleaning lubricant to get rid of the corrosion and then wipe it with a clean cloth. A more lasting solution, however, is putting a permanent lubricant on the clean switch contacts to create a durable coating. This will drive away moisture and prevent future oxidation and grime buildup.
    • Make sure the connections are clean and tight.
    • Sometimes, when a switch does not work, the problem may not be caused by the switch itself. The problem may lie in the electrical connection between the motor and the switch. Check the wires inside the door panel and trace the electrical flow from the motor to the switch to make sure everything is in its proper position.
    • Keep the window regulators aligned.
    • If only one of your windows is not moving when you use the switch, it is high time that you take a look at your Miata's window regulator. The cables and pulleys can come loose and prevent the windows from sliding up or down. If there are broken cables, simply replace them since they are not at all expensive.