2000 4wd SERVICE LIGHT switch; info needed

[ItsMeJohn]

I have a 2000 Chevy Silverado PU ; 4wdrive; extended cab. My SERVICE light stays on and I understand it is a simple switch that needs replaced. (4 Wheel Drive Service Switch) ANybody familiar with what switch is needed? Please feel free to email me...thanks!
John

[Flatrater]

Its your 4 wd select switch you need to replace.

[billburg]

Originally Posted by Flatrater

Its your 4 wd select switch you need to replace.

I'm having the same problem with my 2001 Silverado. Is this switch expensive? and does it have to be installed by a chevy dealership?

Thanks

Gary

[ItsMeJohn]

You have to purchase it at the dealership. Its a dealer item only. Costs aprox. $47 and VERY easy to install. (do it yourself)
Just pull plastic molding away from dash and it exposes the whole switch...you just unplug the old and plug in the new.
John

[nick67]

do yourself a favor and once the controller is out of the dash pop it open. i did that to mine and found that all of the solders for the pins where the wire harness plug onto were broken. i simply repaired the solders and i was on my way with a working four wheel drive. 5 minutes and no money spent. good luck.

nick

[99ssconv]

"Service 4WD" Indicator Illuminated, DTC B2725 Set (Replace Transfer Case Shift Control Switch)
1999-2002 Chevrolet and GMC C/K Pickup and Utility Models (Silverado, Sierra, Avalanche, Suburban, Tahoe, Yukon, Yukon XL)

with Four Wheel Drive and NVG 236/246 Transfer Case (RPO NP8)

Condition
Some customers may comment on the Service 4WD indicator illuminating. Upon investigation, the technician may find DTC B2725 set.

Cause
The condition may be due to a intermittent fault in the transfer case shift control switch.

Correction

Important
The transfer case shift control module should not need replacement. DO NOT replace P/N 15749703 unless diagnosis points to the module as the malfunction.


Replace the transfer case shift control switch using published Service Information procedures.

Parts Information
Part Number
Description

15709327
Transfer Case Shift Control Switch


Parts are currently available from GMSPO.

[cslavin]

Originally Posted by nick67

do yourself a favor and once the controller is out of the dash pop it open. i did that to mine and found that all of the solders for the pins where the wire harness plug onto were broken. i simply repaired the solders and i was on my way with a working four wheel drive. 5 minutes and no money spent. good luck.

nick

I also had been experiencing frequent "service 4wd" messages although 4wd seemed to function properly. I did not see any obvious problems with connections or solder but reheated the connections anyhow. Switch worked perfect afterward with no "service 4wd" messages. Also followed the advice of others and cleaned gauage cover.

Elapsed time.....about 20 minutes.

[cslavin]

Originally Posted by nick67

do yourself a favor and once the controller is out of the dash pop it open. i did that to mine and found that all of the solders for the pins where the wire harness plug onto were broken. i simply repaired the solders and i was on my way with a working four wheel drive. 5 minutes and no money spent. good luck.

nick

I also had been experiencing frequent "service 4wd" messages although 4wd seemed to function properly. I did not see any obvious problems with connections or solder but reheated the connections anyhow. Switch worked perfect afterward with no "service 4wd" messages. Also followed the advice of others and cleaned gauage cover.

Elapsed time.....about 20 minutes.

[Sonny01]

I also had the problem and just resoldered the pin connections and was on my way...no money spent.
Sonny

[wirles]

Have you guys ever tried www.gmpartsdirect.com I dont work for them but if you have a part number you can usually get the gm part cheaper.

GM PART # 15709327
CATEGORY: All
PACK QTY: 1 CORE CHARGE: $0.00
GM LIST: $58.38
OUR PRICE: $33.27
DESCRIPTION: SWITCH

If I can wait for the part I usually order it from them.

Bill

[eichhorn7777]

Hey Guys
I also have a 2000 Chevy 5.3 extended cab that has the service 4 wheel drive light that comes on about every other time that I drive it. I pulled the plastic cover off under the steering and cannot locate the switch? Am I just blind? Thanks

[jwiebers]

You guys are great! It was easy to get my switch out. I opened it up, and the solder was cracked around the pins. I've never soldered any electronics, but borrowed a soldering iron from a neighbor, resoldered the connections. The whole job only took 45 minutes from the time I opened the door until it was all back together. The switch has never worked right in the 4 years I've owned this pickup, so this is great! And no money out of pocket, plus it made it easy to clean all the dashboard components! Thanks again!