1. Check the Fuse:
* Location: Open the driver's side fuse box (usually located under the dash). Consult your owner's manual to find the fuse specific to your rear window.
* Inspection: Look for a blown fuse (the metal strip inside will be broken). Replace it if needed.
2. Test the Window Switch:
* Functionality: Try pressing the window switch in both up and down directions.
* Symptoms:
* If the switch doesn't click or make any sound, it might be faulty.
* If it clicks but the window doesn't move, there's a problem with the motor or wiring.
3. Check the Window Motor:
* Access: You'll need to remove the interior door panel to access the motor. Be careful with clips and fasteners.
* Visual Inspection: Look for any visible damage, broken wires, or loose connections.
* Testing:
* Use a multimeter to test if the motor is receiving power when the switch is pressed.
* You can try manually turning the motor shaft with a screwdriver to see if it moves freely.
4. Inspect the Window Regulator:
* Access: You'll need to remove the door panel to access the regulator.
* Visual Inspection: Look for broken cables, bent arms, or other signs of damage.
* Testing: If the motor works and the switch is good, the regulator is likely the culprit.
5. Check Wiring:
* Visual Inspection: Look for any broken, frayed, or disconnected wires.
* Continuity Testing: Use a multimeter to test the continuity of all the wires connecting the switch, motor, and regulator.
Helpful Tips:
* Use a repair manual: A specific repair manual for your 1999 Honda Accord will provide detailed instructions for accessing and troubleshooting the window system.
* Professional Help: If you're not comfortable with electrical work or car repairs, it's best to take your car to a qualified mechanic.
Important Note: Electrical work can be dangerous. If you're not confident in your abilities, seek professional help.
