1. Check the Fuses:
* Locate the fuse box: Your Jeep likely has two fuse boxes – one under the hood and one inside the vehicle (often under the dash). Consult your owner's manual to locate them and find the fuses related to the power windows.
* Inspect the fuses: Look for blown fuses (burned-out filaments). Replace any blown fuses with fuses of the *same amperage*. Using a higher amperage fuse can damage your electrical system.
2. Check the Window Switches:
* Test each switch individually: Try operating each window with its corresponding switch. If one window doesn't work, the problem might be isolated to that switch. Try the switch in different positions. Sometimes, they get stuck.
* Test other switches using that window: If one switch is faulty, try rolling that particular window up and down using other window switches if they control the same circuit. (Some models allow this, some don't).
3. Check the Window Regulator:
* Inspect the regulator mechanism: This is the mechanism that physically moves the window up and down. It's located inside the door. You'll likely need to remove the door panel to access it. Look for broken cables, bent parts, or anything that looks obviously damaged.
* Listen for sounds: With the switch activated, listen carefully for unusual sounds coming from the door – grinding, clicking, or whirring – that might indicate a problem with the regulator.
4. Check the Motor:
* Access the motor: Like the regulator, this is inside the door. You'll need to remove the door panel to access it.
* Test the motor (with caution!): You can try to directly test the motor's power using a multimeter, but this requires some electrical knowledge and is potentially risky if done incorrectly. It's best to leave this to someone with experience if you are not comfortable.
5. Check the Wiring:
* Inspect the wiring harness: Check the wiring harness running from the switch to the motor and regulator for any broken or frayed wires, especially where the wires enter and exit the door. These wires are often vulnerable to damage from flexing.
6. Master Window Switch:
* On some models, the driver's side window switch is the master switch. If this switch is faulty, it can affect all windows. Replacing this switch might solve the issue.
7. Ground Connection:
* A poor ground connection can cause intermittent power window problems. Check the ground points associated with the window motors.
If you're not comfortable working on the car's electrical system yourself:
* Take it to a mechanic: A qualified mechanic can diagnose and repair the problem more accurately and safely. Explain the symptoms clearly.
Before you start disassembling anything, take pictures of each step. This will help you put it back together correctly. Also, be careful when removing the door panel, as there are often clips and fasteners that can be easily broken. Refer to a repair manual specific to your 1995 Jeep Cherokee Sport for guidance on removing the door panel and accessing the window regulator and motor.
