* Under the hood: Most relays are found in a fuse/relay center located under the hood, often near the battery. This box is usually black plastic and will have a diagram on the inside of the lid showing the location of each relay.
* Inside the cabin: Some relays, particularly those for interior components, might be located inside the passenger compartment, often under the dashboard or in the fuse panel located near the driver's side.
To find the specific relay you need:
1. Consult your owner's manual: This is the best resource. It will have a diagram of the fuse and relay boxes and will identify which relay controls which system.
2. Look for markings on the relay box: The relay box usually has a diagram printed on the inside of its cover, showing which relay controls what.
3. Use a wiring diagram: If you can't find it in the manual or on the box, a wiring diagram for your specific year and model Blazer S10 will be helpful. These can sometimes be found online through repair manuals or forums dedicated to Chevy S10s and Blazers.
Without knowing which relay you are looking for (e.g., headlights, fuel pump, etc.), it's difficult to give a more precise location. Checking the locations mentioned above, with the aid of your owner's manual or a wiring diagram, is the most reliable way to find the specific relay you need.
