* Under the hood in the fuse box: This is the most common location. The fuse box usually has a cover with a diagram showing the relay locations. Look for a relay labeled "blower," "heater," or something similar. The diagram might use a symbol resembling a small fan.
* Under the dash: Less common, but possible. This would typically be near the fuse panel located under the dash, often accessible by removing a panel below the steering column or glove compartment.
* Within the HVAC (Heating, Ventilation, and Air Conditioning) control unit: A less likely location but possible on some models. This would require removing the control unit itself.
To find it definitively:
1. Consult your owner's manual: The manual is your best source for this information, as it's specific to your vehicle's year, trim level, and options. The diagram should show the relay's position within the fuse box or other locations.
2. Check online forums and resources: Search online forums specific to 1996 Chevy Blazers (like forums on sites dedicated to GM vehicles). Many owners have discussed this and may have pictures. Searching "1996 Chevy Blazer heater blower relay location" is a good starting point.
3. Use a wiring diagram: A wiring diagram for your specific Blazer will show the relay's location and its circuitry. You can often find these diagrams online through automotive parts websites or repair manuals.
Important Note: Before working on any electrical components, disconnect the negative battery terminal to prevent accidental short circuits or damage.
