Grand Cherokee 2WD V6-3.7L (2008)
Power Window Switch: Testing and Inspection
POWER WINDOW SWITCH
The front door power window switches are included in the window/lock switch See: Sensors and Switches - Body and Frame/Power Door Lock
Switch/Testing and Inspection.
The Light-Emitting Diode (LED) illumination lamps for all of the power window switch knobs receive battery current through the power window circuit
breaker in the junction block. If all of the LEDs are inoperative in the power window switch and the power windows are inoperative, See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures. If the power windows
operate, but any or all of the LEDs are inoperative, the power window and lock switch units with the inoperative LED(s) must be replaced. For complete
circuit diagrams, refer to the appropriate wiring information.
1. Check the fuse and the circuit breaker. If OK, go to STEP 2. If not OK, replace the fuse or circuit breaker.
2. Turn the ignition switch to the On position. Check for battery voltage at the power window fuse. If OK, turn the ignition switch to the Off position
and go to STEP 3. If not OK, check circuit breaker and repair the circuit to the ignition switch as required.
3. Disconnect and isolate the battery negative cable. Remove the power window switch from the door trim panel. Unplug the wire harness connector
from the switch.
4. Test the power window switch continuity. See the Power Window Switch Continuity chart to determine if the continuity is correct in the Neutral,
Up and Down switch positions. If OK, See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Tests and Associated Procedures. If not OK, replace the inoperative switch.
