Window switch question

[Billyjack]

Hello friends - my 2001 GMC Sierra 2500 SLE has two window switches on the driver's door, one for driver, one for passenger side. The driver side has the "auto-down" function. The one that controls the passenger side does not. Can I replace the passenger switch to an "auto-down" as well?

Just wasn't sure if the ability to do that is contained within the switch itself, or if it is somewhere else within the harness/system.

Thanks.

 

[Marky Dissod]

Forced to guess, it's most likely in the switching 'block / assembly' ... ?

 

[ORVietVet]

I believe, but unsure, it is controlled by the BCM.

 

[Cadillacmak]

On a 01, I would try a switch and see if it works. The computer systems were still very simple minded and not trying to be "Skynet".

 

[Marky Dissod]

On a 01, I would try a switch and see if it works. The computer systems were still very simple minded and not trying to be "Skynet".

Before '02, did the non-escalades even use body control modules?

 

[Billyjack]

I'm going to try one, and see if it works. Thanks for the input!

 

[Cadillacmak]

I'm going to try one, and see if it works. Thanks for the input!

In our 01 Yukon the driver window does not auto down anymore, PO said he replaced the door switch and it worked for about 2 years then stopped again. That leads me to believe its in the switch.

 

[mars2878]

Before '02, did the non-escalades even use body control modules?

Yes, there were BCM's in the 90s. For the 2003my of gmt800 & s10 platform, they changed how things were tied together.
On the Impala, that change occurred for the 2000my.

That is why you see 99-02 vs 03-07 alot. Not only a face-lift, a center console revision, a radio growth, but more importantly an electrical change.

 

[stutaeng]

Yes, there were BCM's in the 90s. For the 2003my of gmt800 & s10 platform, they changed how things were tied together.
On the Impala, that change occurred for the 2000my.

That is why you see 99-02 vs 03-07 alot. Not only a face-lift, a center console revision, a radio growth, but more importantly an electrical change.

Correct. My 99 has a BCM.

All GMT800 use BCM.

I don't believe my 00 K3500 GMT400 has a BCM AFAIK.

 

[mars2878]

Correct. My 99 has a BCM.

All GMT800 use BCM.

I don't believe my 00 K3500 GMT400 has a BCM AFAIK.

Both my 99 Suburban & 99 k2500 (both gmt400), as well as my 98 Bravada had bcm's. So I knew for a fact that they were available in the 90s.