Grand Cherokee 4WD L6-242 4.0L VIN S MFI (1993)
Power Window Switch: Testing and Inspection
One Window Inoperative
1. Remove door trim panel of inoperative window, probe harness side of switch connector.
2. Measure voltage of terminal 2 of connector while holding corresponding master switch in the down position. Meter should read battery voltage. If
OK, go to next step. If not, repair open to master switch.
3. With master switch still in down position, measure voltage at terminal 6 of connector. Meter should read battery voltage. If not, check for battery
voltage at motor terminals. Replace motor/regulator as required. If OK, repair open to master switch.