Full Size K5 (1969-1991) GMT415 (1992-1994) Tech Discuss any and all full size K5 general tech topics here.

Rear window Safety Switch

  #1  
Old 04-06-2011, 10:42 PM
Beginning Member
Thread Starter
Join Date: Mar 2011
Posts: 23
educky is on a distinguished road
Default Rear window Safety Switch

First take out the four screws holding the tailgate latch mechanism in... you will have to undo the Latch control rod from the latch mechanism and the latch control, which is pretty easy, just dont break the plastic piece on the latch control side.


This is the Tailgate latch with the "Blockout Switch" attached to it, basically its your switch that shorts when your tailgate is closed allowing your Window to go up, and not shorted when the tailgate is down so you cant roll your window up.

Mine Stopped rolling my window up, after a new motor.... Forums pointed me to this switch. I took the wires off the switch while it
was all together, and shorted the wires with a spare scrap wire i had. Window worked. So I knew it was the switch. Took a continuity tester to the switch and it wasnt shorting when the latch was in the closed position.



Side View....



Disassembled Switch, I took that top spring out, and stretched it out, that copper square piece I took out and used a wire brush on it to clean it, and cleaned the contacts on the harness attachment. Basically as the latch is in closed position it pushes a rod into this switch, moving the copper square "Pad" over enough to short the 2 pins. Mine was all gunked up and dirty, and the metal pad wasnt being pushed down far enough to make contact with the 2 points...

Put it all together, and check it with the continuity tester, and voila, it works again, reassembed everything and its all working again!

 

Last edited by educky; 04-07-2011 at 01:13 PM.
  #2  
Old 04-07-2011, 01:20 PM
swartlkk's Avatar
Administrator
Join Date: May 2005
Location: Waterloo, NY
Posts: 40,792
swartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond repute
Default

Pretty simple. Good job! I'd coat everything in there with dielectric grease to keep it functioning properly for a long time to come!
 
  #3  
Old 05-03-2011, 04:14 PM
New Member
Join Date: Mar 2011
Location: Utah
Posts: 4
86blazin is on a distinguished road
Default

THANK YOU so much!!! I have been having this problem and couldn't figure it out!


LIFE SAVER!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kickme005
2nd Gen S-series (1995-2005) Tech
8
05-05-2010 06:50 AM
yarinzim
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
10
03-28-2010 07:22 AM
metcalfr
1st Gen S-series (1983-1994) Tech
3
11-23-2009 01:07 AM
95_4door
Engine & Transmission
12
04-14-2008 07:39 PM
blazerssuck
2nd Gen S-series (1995-2005) Tech
11
12-05-2006 08:14 PM


Thread Tools
Search this Thread
Quick Reply: Rear window Safety Switch


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.