S13 Driver Window Rolls Up But Only Sometimes Down. Searched, Tryed Amp&Switch. Help! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Vegass13 · 09-15-2014, 06:47 PM

i would unplug the connector to the window motor and apply 12v directly to one prong and ground the other one way the window should go up, flip it around it should go down. if it goes up and then you swap the power and ground to opposite wire and it doesn't go down then I would say you need a new motor...if it does go down then you know which wire to trace

09-15-2014, 06:47 PM	#1
Vegass13 Zilvia Member Join Date: Jan 2014 Location: Las Vegas Posts: 159 Trader Rating: (3) Feedback Score: 3 reviews	i would unplug the connector to the window motor and apply 12v directly to one prong and ground the other one way the window should go up, flip it around it should go down. if it goes up and then you swap the power and ground to opposite wire and it doesn't go down then I would say you need a new motor...if it does go down then you know which wire to trace