1. Check the Fuse:
* Locate the fuse box: Consult your owner's manual to find the location of the fuse box (usually under the hood or dashboard).
* Identify the power window fuse: The manual will list the fuse for the power windows. It might be a single fuse for all windows or separate fuses for each window.
* Inspect the fuse: Look for a blown fuse (it'll be broken or discolored). Replace it with a fuse of the same amperage if necessary.
2. Check the Window Switch:
* Test the switch: Try the other window switches to ensure they all work properly. This helps determine if the problem is with the switch itself or somewhere else in the system.
* Inspect the switch: The driver's side window switch is often more complex as it usually includes a lock-out feature to prevent children from operating it. Sometimes these switches internally fail. Consider removing the switch to visually inspect it for any signs of damage, corrosion, or loose wires. (This often requires removing the door panel.)
3. Check the Window Motor:
* Listen for the motor: When you press the switch, do you hear *any* sound from the door? A faint clicking might indicate a problem with the motor or its connection. No sound at all suggests a more serious electrical issue.
* Manually operate the window (if possible): If you can access the window mechanism (after removing the door panel), attempt to raise or lower the window manually. If it moves freely, the motor is likely the issue. If it's stuck or difficult to move, you may have a mechanical problem with the regulator (discussed below).
4. Check the Window Regulator:
* Access the regulator: This requires removing the door panel. The regulator is the mechanical part that moves the window up and down.
* Inspect for damage: Look for broken cables, bent parts, or other signs of wear and tear. These regulators are known to fail over time, especially the cables.
5. Wiring:
* Inspect wiring: With the door panel removed, carefully inspect all the wiring connected to the switch, motor, and regulator. Look for broken, frayed, or corroded wires. Pay close attention to the connections.
* Check for continuity: If you have a multimeter, you can test the wiring for continuity (to see if the circuit is complete). This requires some electrical knowledge.
Important Considerations:
* Door Panel Removal: Removing the door panel can be tricky and requires careful attention to avoid damaging clips and connectors. There are many online tutorials specific to your car model. Search for "1993 Mazda 626 driver side door panel removal" on YouTube.
* Electrical Safety: Be careful when working with electrical components. Disconnect the battery's negative terminal before starting any electrical work.
Likely Culprits in Order of Likelihood:
1. Window Switch: This is the most common failure point.
2. Window Regulator: These wear out and break relatively often.
3. Window Motor: Less common than the switch or regulator.
4. Wiring: Least likely unless there's been some damage to the door.
If you're not comfortable performing these repairs yourself, take your car to a qualified mechanic. They have the tools and expertise to diagnose and fix the problem efficiently.
