Where is the relay located on my car? Iv changed.

When the window switch is depressed, current flows through the switch, through one feed wire, the motor, and back to the master switch, where it is led to ground through a common ground wire. When switch is pressed in the other direction, current flows through the other feed wire, through the motor, back to the master switch, and to ground.

TROUBLE SHOOTING
WINDOWS WILL NOT OPERATE

No power at circuit breaker or master switch. Ignition off. Bad ground connection at master switch. Switch defective
.
INDIVIDUAL WINDOW DOES NOT OPERATE, ALL OTHERS OPERATE
Defective motor. Open circuit in door. Defective window switch or master switch.
INDIVIDUAL WINDOW DOES NOT OPERATE FROM WINDOW SWITCH, OPERATES FROM MASTER SWITCH
Window switch defective. Open circuit in power feed wire.

TESTING
CIRCUIT BREAKER
Check power feed to circuit breaker. Test power feed after circuit breaker. Repair as necessary.

MASTER CONTROL SWITCH
Check for power at Pink wire. All other wires should have continuity to ground when switch is in rest position. Check for clean and tight ground connection.

WINDOW CONTROL SWITCH
Connect one lead of test light to Pink wire in switch connector, and the other end to ground. If light does not glow, check power feed wire. Locate wires to motor.
Using a jumper wire, connect Pink wire in switch connector to one motor wire. Ground other wire. Motor should operate. Reverse wires and retest. If motor operates properly, replace switch. If not, test motor.

WINDOW MOTOR
Connect power to one motor lead and ground other lead. Reverse connections and retest. If motor does not operate correctly in both directions, replace it.