1. Check the Fuses:
* Locate the fuse box: Your Blazer likely has an under-hood fuse box and an interior fuse box (often under the dash). Consult your owner's manual for the exact locations and fuse diagrams.
* Identify the correct fuse: Look for a fuse related to the power seats or accessory power. It might be labeled clearly, or you might need to use the diagram to find the one corresponding to your seat's circuit.
* Inspect the fuse: Check for a blown fuse (broken filament). Replace it with a fuse of the same amperage if necessary.
2. Check the Power Seat Switch:
* Inspect the switch: Examine the switch itself for any signs of damage, loose connections, or broken wires. Sometimes, simply jiggling the switch can temporarily restore functionality, indicating a loose connection.
* Test the switch (advanced): If you're comfortable with basic electrical testing, you can use a multimeter to test the switch's continuity in its various positions (forward, backward, up, down). This will tell you if the switch itself is faulty.
3. Check the Wiring:
* Visual inspection: Carefully inspect the wiring harness leading from the switch to the seat motor. Look for any obvious breaks, fraying, or corrosion in the wires. Pay close attention to where the wires connect to the switch and the motor itself.
* Continuity test (advanced): Use a multimeter to check for continuity between the switch and the motor. If there's no continuity, you've likely located a break in the wiring. Trace the wires carefully to find the break and repair it. This can be tricky and may require some automotive electrical knowledge.
4. Check the Seat Motor:
* Listen for clicks: When you try to operate the seat, listen carefully for any clicking sounds coming from the seat motor itself. A clicking sound often indicates a faulty motor, but it could also indicate a problem with the switch or wiring.
* Test the motor (advanced): If you have access to 12V power and are comfortable working with electricity, you can directly test the motor. Connect the 12V power (with appropriate polarity and a fuse inline!) to the motor terminals to see if it works. This requires caution and understanding of automotive electrical systems. Caution: incorrect polarity can damage the motor.
5. Check the Ground Connection:
* Find the ground: A poor ground connection can prevent the seat from working. Trace the wiring to find where the ground wire connects to the car's chassis. Clean this connection with a wire brush to remove any corrosion.
6. Consider Professional Help:
If you're not comfortable with electrical work or after completing the above steps and still having problems, it's best to take your Blazer to a qualified mechanic or auto electrician. They have the tools and expertise to diagnose and fix more complex electrical issues, such as a faulty control module or a more deeply rooted wiring problem.
Important Notes:
* Disconnect the battery's negative terminal before performing any electrical tests or repairs to avoid short circuits and potential damage.
* Consult a repair manual specific to your 1995 Chevy S10 Blazer. This manual will provide detailed diagrams of the wiring and electrical systems, making troubleshooting much easier.
* Safety First: Working with automotive electrical systems can be dangerous. If you're not comfortable with this type of repair, don't attempt it.
By systematically checking these components, you'll greatly increase your chances of identifying and fixing the problem with your electric seat. Remember safety precautions throughout the process.
