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reguarding power window on 2002 Pontiac Grand Prix

how do I check to see if the motor for my power window is bad

Asked by for the 2002 Pontiac Grand Prix
Check for power and ground control at plug to motor while operating switch. OR if you can access motor , apply battery voltage and ground to terminals reverse polarity as needed for up-down change. keep hands/fingers clear of moving parts! do NOT apply voltage for more than 1-2 seconds! Good luck. Wouldn't hurt to test ALL fuses first!.......
thanks that help alot
1 more answer
check voltage at pos+ conection on motor while engaging window switch you should see source voltage same at ground connection on motor. wait i may be wrong on this, lemme get back to ya...