1988 chevy c2500, passenger window

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=142758
Printed Date: April 28, 2024 at 11:44 AM

Topic: 1988 chevy c2500, passenger window

Posted By: dennismenace
Subject: 1988 chevy c2500, passenger window
Date Posted: March 16, 2017 at 5:09 AM

I need help with power windows in my 1988 chevy c2500 truck I just bought. Passenger window won't roll up and down. Good motor and regulator I'm not getting 12v to one wire when I press the up switch. I need 12v and a ground for up and the same backwards for down. Driver window works fine.

Replies:

Posted By: the12volt
Date Posted: March 16, 2017 at 6:16 PM

Assuming you've checked each of the connections at each switch that operates the passenger window is properly connected, use a meter on each lead of those switches to verify it has 12V+, ground, and is supplying power and ground to the window motor leads, then go from there. It may be as simple as replacing a switch or you may have a break in one or more leads to the switch and/or window motor.

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Posted By: davep.
Date Posted: March 16, 2017 at 11:09 PM

It can be either driver's or passenger side switch causing the passenger side not to work.

The passenger side switch has 5 wires on it. One is B+, two to the motor, and two to the Drivers switch. Both of these wires rest at ground through the Driver's switch. The passenger switch applies B+ to either motor wire, and the other motor wire is grounded at the Driver switch.

So if you have B+ (checked to chassis ground on each motor lead from the passenger switch, check that there is continuity (from orn/blk wire on passenger switch)to each wire going to Driver switch.