98 Tahoe wiring help
 

My power door locks don't work ( any of them) I've checked all the fuses, it looks like there's a relay in the circuit somewhere but I can't seem to find it.. Any suggestions ? I've checked all of the fuse/ relay boxes that I can find,,
Thanks
Todd

It's possible there could be a broken wire in the harness in the rubber boot where it passes through the door to the switch.

Todd, there is a door lock relay under the center of the dash. It has six wires, ORANGE, TAN, WHITE, LT BLUE, GREY, and BLACK.

Orange: is constant hot.

Tan: goes to terminal "A" on all of the lock actuators.

White: goes to the unlock terminals on each door switch, and also to terminal "D"
on the door lock control module (Front of Left Rear Wheelhouse).

Lt Blue: goes to the lock terminal on the door switches, and terminal "C" on the lock module.

Grey: Goes to the "B" terminal on the lock actuators.

Black: is ground.

The orange wire runs to a constant hot, 30A fuse, PWR ACCY / CB , in the instrument panel fuse block (left hand side of the dash).

I can try to send you a schematic if you want, it might be too small to use though.

Thanks Shaun,, I was on GMtruck.com but it sucked... Damn you can really appreciate this forum with the amount of inactivity on the others..

LM6,, I have the schematic thanks,, and just found the relay with the info Shaun gave me. I'll figure it out tomorrow in the light..

Todd, you back here for Thanksgiving?

I am, should be getting into Manch the Friday before and hanging out till Tue after.. let's get together!

Saturday is Thanksgiving with Chris&Janus. C'mon down!
-Chris

Sat before or Sat after TG ? Either way I'm in!!!! Hey any luck getting the VW running ??
T

Cool, see you then! I'm not going to MN this year.

Ok guys, I picked up a new door lock relay and no luck.. Here's a wiring diagram.. I have 12 volts on the orange to the relay ( it's a 4 door so look at the relay on the right).. When I short the orange to the tan or light blue it does activate the door locks).. I don't get a full short on the black to ground conductivity check. So now where do I look for a broken wire?? I'm thinking maybe the black wire?? Suggestions ?http://forums.pelicanparts.com/uploa...1226257091.jpg

Hey Todd,

Do you have 12V on the other orange (to the door lock switches)No power there would cause a no go condition. Using a meter, are you grounding on the chassis, or grounding on the black wire on the relay? By trying both ways, you can tell if your black is broken.
Orange --> meter --> chassis = 12V
Orange --> meter --> black wire = ??

On the output of the switches (coming into the relay) do you see 12V???

Charles, yes 12 on the orange, I'll make some measurments tomorrow and comment.., thank Nicole for letting you look at this for me