Go Back   Infamous Nissan - Hardbody / Frontier Forums > Model Specific > Nissan Cars

Thread Tools Display Modes
Old 06-01-2019, 08:02 PM   #21
Join Date: Jul 2017
Location: MD
Posts: 12
Vehicle: 1993 Nissan NX2000
Thanks: 4
Thanked 0 Times in 0 Posts

Originally Posted by david29 View Post
The amplifier is what makes the auto rolldown feature work.
Thanks David.

IDK what to tell you. I have the original (3" thick!) Nissan shop manual. I've been through the schematics a few times. I'm a tech -- but not a Nissan tech -- so I could have missed it but it sure isn't obvious.

The NX does have the auto rolldown feature on the driver's window (as I'm sure you know) so that means it has to have *something* to perform that function. Maybe it's an amplifier, maybe it's a relay.

I have no idea how auto mfrs design the control circuitry for the auto down feature. One way would be to use a "pick and stick" relay -- when the driver pushes the window button all the way down, that picks the relay which then "sticks" (stays picked) and provides a parallel path for current flow to the window motor. The driver can then let up on the switch and the motor will continue to run until the window is fully down.

Whatever the case, the 'auto down' feature is an additional/aux path. Theoretically it could be removed and the windows should still work.

Again, IDK for sure, but it does not seem like something that would cause both windows to stop operating.

I haven't gotten around to doing the troubleshooting I mentioned above. I'm hoping that will solve the problem -- but with it being intermittent, that may be wishful thinking.

Initially, I was hoping that others would have had the same problem and could point me in the right direction, because there are several possible causes.
sajohnson is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT. The time now is 03:35 AM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.