My passenger window will not go up or down. I have checked all fuses and relays and none are blown. The drivers side window works and the moon roof? Is it probably the motor?

 

First check whether the main switch on the driver's switch assembly is turned ON.

A bad motor is one possibility. Supply battery power directly to the passenger window motor. If it doesn't run then replace motor.

Other possibilities include:

1) Bad driver or passenger switch

2) Broken wire between motor and switches

3) Loose or disconnected ground wire

 

Yeah i got a 99 si and both my motors have died