* Under the hood, in the Power Distribution Center (PDC): This is a large fuse and relay box usually located in the engine compartment, often near the battery. The PDC will have numerous relays, and you'll need to consult your owner's manual or a wiring diagram to identify the specific relay for the radiator fan. The diagram will show the relay's location within the PDC and may label it as "Radiator Fan Relay," "Cooling Fan Relay," or something similar.
* Under the dashboard: In some less common cases, the relay might be located inside the passenger compartment, within a fuse box under the dashboard. Again, your owner's manual or a wiring diagram will be essential to locate it.
To find the relay:
1. Consult your owner's manual: This is the best starting point. The manual will have diagrams showing the fuse and relay box locations and often a legend identifying the relays.
2. Use a wiring diagram: If the manual doesn't provide enough detail, find a wiring diagram specific to your 2002 Dodge Caravan's engine (e.g., 3.3L, 3.8L). These diagrams can be found online through various automotive repair resources, or sometimes through a subscription service like AllDataDIY.
3. Visually inspect the PDC: If you're comfortable working under the hood, carefully open the PDC cover. Look for relays that are similar in size and shape and might have markings related to cooling or fans.
Important Note: Working with electrical components can be dangerous. If you're not comfortable performing this task, it's best to take your vehicle to a qualified mechanic. Incorrectly replacing a relay could cause further damage.
