91 mr2 p/w wiring

[Rassel]

I have a 91 mr2 and recently the passenger side p/w stopped working. Both switches are still good and when I push window up, I can hear a click from the p/w motor. But when I push down, there is no click. Are there relays in the motor or on the motor, and if there are, is there any way to get at them to replace them.