* Under the hood in the fuse box: This is the most likely location. The fuse box often has a cover that shows a diagram of the fuses and relays. Look for a relay that is clearly labeled "blower motor" or something similar. Even if it's not labeled, you might find a description in your owner's manual that indicates which fuse or relay controls the blower motor.
* Under the dash: Some vehicles also place relays under the dashboard, often near the fuse box there. This area can be harder to access.
* Within the blower motor housing itself: This is less common but possible. You would have to remove the blower motor to check.
To find it, you'll likely need:
* Your owner's manual: Check the electrical diagrams.
* A 1991 Chrysler LeBaron repair manual: This will have a detailed diagram showing the location of all the relays and fuses. Chilton and Haynes manuals are common choices.
* A multimeter (optional but helpful): This can help you identify the correct relay by testing for power and continuity.
Without access to a repair manual, visually inspecting the fuse boxes (both under the hood and under the dash) is your best starting point. Look for relays that are roughly the same size and shape as others in the box, and try to identify one that might be associated with the HVAC system. Remember to disconnect the negative battery terminal before working with any electrical components.
