* Under the hood, in the fuse box: This is the most common location for relays in vehicles. Look carefully inside the fuse box (often near the battery) for a relay that is labeled "AC," "A/C," or has a symbol indicating air conditioning. You might need to consult a wiring diagram specific to your 1989 Ford Probe to identify the correct relay.
* Under the dash: Some relays, particularly those related to less frequently used functions, might be tucked away under the dashboard. This is less likely for the main AC relay, but still possible.
* In the under-hood relay panel (if equipped): Some Probes may have a separate relay panel, often located near the fuse box but separate from it. Check for this if you can't locate it in the main fuse box.
To find it definitively, you will likely need:
1. Your owner's manual: This might have a fuse/relay diagram.
2. A wiring diagram specific to your 1989 Ford Probe: These are available online from various auto parts websites (often for a small fee) or from a Haynes or Chilton repair manual. The diagram will show the relay's location and possibly its markings.
3. Visual inspection: Carefully examine the fuse boxes and any relay panels you find. Look for relays that are larger than the others (AC relays tend to be bigger to handle the higher current) and examine their labeling or symbols.
Remember to disconnect the negative battery terminal before working with electrical components. Take photos as you go to help with reassembly.
