1998 Silverado, Door lock?

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mtzracing

Member - Posts: 7

Joined: February 25, 2006

Posted: February 25, 2006 at 11:52 PM / IP Logged

The vehical: 1998 Silverado Crew Cab PU

The problem: Niether door lock button will operate the locks, but the key fobe remote will. Could the driver side control pod be the problem? Sorry but I'm not an installer just an owner trying to find a solution.

tom badger

Member - Posts: 48

Joined: January 09, 2006

Location: United States

Posted: February 26, 2006 at 12:31 AM / IP Logged

Check for a blown fuse. If fuse is good, check your wiring with a meter.

LIGHT BLUE, located IN EITHER DOOR BOOT

Locks are Type C - if no factory keyless entry or 2 Door, but

4-Door or WITH Factory Keyless Entry, locks are Type A.

The Badger

mtzracing

Member - Posts: 7

Joined: February 25, 2006

Posted: February 27, 2006 at 8:47 PM / IP Logged

No blown fuse and the actuators work with the key remote. Would a failure of the driver door button pod cause the passenger door button not to work as well?

gus1

Gold - Posts: 1,013

Joined: October 15, 2003

Location: Canada

Posted: February 27, 2006 at 9:00 PM / IP Logged

Shouldn't...

First thing to check is is there a positive pulse showing up at either the light blue or white wire at the door lock relay located on the accel. pedal bracket. You should also see if there is 12V all the time on the orange wire at either switch.

Did anything else up and stop working at the same time, or is it just the door locks?

Gus

Wherever I go, that is where I end up......

mtzracing

Member - Posts: 7

Joined: February 25, 2006

Posted: February 27, 2006 at 9:22 PM / IP Logged

Gus, thanks I will check the things you mention. No other failures have been noted.

mtzracing

Member - Posts: 7

Joined: February 25, 2006

Posted: February 28, 2006 at 7:10 PM / IP Logged

There is no voltage at the orange or blue wires with the key off or on. I replaced the relay (relay #2) down at the parking brake next to the trailer flasher as it was the only one to be found. I've check every fuse I could find, all in the dash location and one 5 amp I found down at the foot controls. Still the same problem.??

jeosnh

Member - Posts: 12

Joined: April 28, 2005

Location: United States

Posted: February 28, 2006 at 7:31 PM / IP Logged

I am pretty sure that this is true, and that would also make sense that the remote works becuase it doesn't use the door switch to lock/unlock the doors. Also, if the remote works it can't be the dr lk relay becuase then the remote wouldn't work either. I would take a closer look at both of the switches, 'cause if either one was bad it would cause that problem.

mtzracing

Member - Posts: 7

Joined: February 25, 2006

Posted: February 28, 2006 at 8:15 PM / IP Logged

Assuming I found the correct relay, the remote works with it unpluged. There is no power to the orange or blue wire, I assume one or the other should have power at all times to the switch.

Thanks,

MTZ

gus1

Gold - Posts: 1,013

Joined: October 15, 2003

Location: Canada

Posted: March 01, 2006 at 2:50 PM / IP Logged

Things that are hot all the time on GM's are usually in the fusebox under the hood, driver's side. There should be one for the locks in there... 15A from what I rememebr.

Gus

Wherever I go, that is where I end up......

mtzracing

Member - Posts: 7

Joined: February 25, 2006

Posted: March 01, 2006 at 6:59 PM / IP Logged

First, thanks for not giving up on me. No fuses show to be blown. I have not found any fuse or relay that is identified as being for the door locks. I have inspected all fuses on the Driver side dash location and under the hood. ???

Door buttons do not operate locks.
Remote will operate locks.
No power to the orange wire at the door button.
No blown fuse to be found.
Relay??? I replaced one at the parking brake bracket next to the Trailer Flasher.

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