To find it, you'll need to:
1. Locate the underhood fuse box: This is usually a large rectangular box, often near the battery. The cover should have a diagram showing fuse and relay locations.
2. Check the fuse box diagram: Look for a relay labeled "starter," "IGN," or something similar related to the ignition system. The diagram will show its position within the box.
3. If it's not a separate relay: If you can't find a dedicated starter relay, it's possible the starter circuit is controlled by a specific fuse within that box, or even by a larger circuit integrated into the PDB. In this case, you'll have to refer to your owner's manual or a wiring diagram for your specific Aerostar model to trace the circuit.
4. Consider the Power Distribution Box (PDB): Some Ford vehicles have a more complex PDB that might contain the starter control circuit. This is a less common location for a dedicated starter relay, but it's worth checking if you can't find it in the main fuse box.
Important Note: If you're not comfortable working with car electrical systems, it's best to take your Aerostar to a qualified mechanic. Incorrectly working with the electrical system can cause damage or injury.
