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  1. #1
    Jr. Mechanic BluBurb89's Avatar
    Join Date
    Jul 2009
    Port Orchard, WA

    Default '89 sub barn door cargo light switch

    I hope this is the right forum for this; if it is not, let me know.
    Does anyone know if this switch that turns on the cargo area light when the right rear door is opened: is repairable or where I can get a new one? Has anyone experienced this issue or know how to rectify it

    1989 R1500 Silverado Suburban
    5.7L, TBI w/ Dual remote oil filters,
    16" 2010 CFM E-fan, K&N filter
    TH700R w/ Aluminum pan, remote trans fluid filter and aux trans fluid cooler
    Air shocks rear,
    7x16 dual axle cargo trailer; 10K Reese HD trunnion bar WDS, dual friction sway dampeners
    Cuz....I like to move it, move it....
    Semper Fi!

  2. #2


    That's a very good question. I'm not sure. I don't think LMC stocks this part. They also don't stock the contacts above it for the electric locks and defroster. Chevy does not have a part number for it anymore either. I think the junkyard is your best bet.

    1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 200K miles
    2005 Saturn ION-2 Stock 277K miles
    1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half

    There are 10 kinds of people, those who understand binary, and those who dont...

    Remember kids, the only difference between screwing around and science is writing it down- Adam Savage

  3. #3
    Jr. Mechanic BluBurb89's Avatar
    Join Date
    Jul 2009
    Port Orchard, WA


    Thanks CD,
    In LMC CSB.31 the contacts are listed #'s 47 thru 49 under 'power door lock: rear cargo doors' but the switch is, as you pointed out, not carried. I've scoured the local junkyards and have found a couple but they are either defective or I have an unknown additional issue.

  4. #4
    Sr. Apprentice raf1231's Avatar
    Join Date
    Apr 2010
    Lenexa, Kansas


    With a bit of ingenuity and a trip to Radio Shack, you might be able to create a new plunger type switch similar to switches used by alarm installer. You might want to stop by an auto alarm outfit and see if they can fix up something for you.

    You're running into the same kind of problems I've been having with my '92. I tried to order a new DRAC/VSSB speed controller to modify because of going to larger tires. I got 2 responses of "not available; on indefinite back-order". I didn't want to modify the original in case I screwed it up but I had no choice -- I modified the old existing one. It worked. Our Subs are getting too old for a lot of parts. It makes you have to start thinking outside the box.

    92 Suburban K1500 5.7l in transition.
    2" lift;
    AR FUEL Blk wheels 16x8 6-spokes blk machined/add red hi-lites;
    BFG All-Terrain KO LT295/R7516/D;
    To Go:
    Blk fender flares;
    Blk frt bumper w/fog lites/grill cut-outs;
    Blk grill frame;
    Custom grill;
    Updated headlites;
    LED corner/parking/turn-signals;
    Blk rear step bumper;
    LED tail/brake/back-up;
    60" LED strip 'tween bumper/cargo drs;
    2-tone paint/orig Red prim color/dr pillars blk;
    Existing running boards will be blk.
    :sign0011: Randy

  5. #5
    Jr. Mechanic BluBurb89's Avatar
    Join Date
    Jul 2009
    Port Orchard, WA


    Thanks, I had thought of your suggestion as a last resort; but I was hoping to keep it as original as possible, as long as possible. I've built up a small stockpile of OEM replacement parts by scouring the junkyards; some after-market parts are better but some are just real junk. Tomorrow I'll be headed 60 miles northeast to scavenge an '89 r2500 that was used as a command vehicle by a rural FD. You never know what's out there you may want or need. I've managed to pick up side glass, vent windows, windshields, hoods and OE fenders NIB for pennies and some time. The problem is now becoming storage and finding the part when I need it .

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