Where are the relays for vent windows on a 99 dodge caravan sport?

The 1999 Dodge Caravan's vent window operation isn't controlled by a single relay in the traditional sense. Instead, the power for the vent windows is likely handled directly through the power window system's main switch and wiring harness. There isn't a separate relay dedicated specifically to them.

Any problems with the vent windows are more likely to stem from:

* Switch issues: The master power window switch itself may be faulty.

* Wiring problems: Broken, corroded, or loose wires in the harness leading to the vent window motors.

* Motor failure: The motors for the vent windows may have burned out or become stuck.

* Fuse issues (less likely): Though less probable, a blown fuse related to the power windows *could* affect them. Check your owner's manual for the power window fuse location and rating.

Therefore, instead of looking for relays, you should focus your troubleshooting on the switch, wiring, and motors themselves. A wiring diagram specific to your 1999 Dodge Caravan Sport would be extremely helpful in tracing the power path. You might be able to find one online through a repair manual site or a Dodge enthusiast forum.