To find it, you'll need to do some detective work:
1. Consult your owner's manual: While it may not explicitly state the relay location, the diagram of fuses and relays might provide clues.
2. Check under the hood: Many blower motor relays are located in the under-hood fuse box. This is usually a black plastic box, often near the battery. Look for a diagram on the inside of the fuse box cover. It might list the blower motor relay, or a similar component like "HVAC," "blower," or "fan."
3. Check the interior fuse box (if applicable): Some vehicles place relays inside the passenger compartment's fuse box, often under the dashboard. Again, check the diagram on the inside of the cover.
4. Use a wiring diagram: A wiring diagram specific to your 1992 Pontiac Sunbird is the most reliable method. You can find these online through automotive parts websites or repair manual providers like Haynes or Chilton. The diagram will show the relay's location and its connection to the blower motor.
Important Note: Before working on any electrical components, disconnect the negative terminal of your battery to prevent electrical shock.
