Advice, please, fuse or bigger issue?

[cfan10]

Ok, guys quick question what # fuse controls power locks?
My power locks were working fine and now they aren’t, it isn’t the switch because that is brand new. Also, the single fuse which is a 20 amp at the top left side of the fuse box, keeps blowing. Could this be the cause of my locks not working?
I lost the fuse panel door that tells you all the fuses by #, I replaced all fuses with new ones and the locks still aren’t working.
What am I missing/overlooking here?

As always many thanks for advice/experience.

98 suburban 5.7

[speedygonzales]

A 2 second google produced this:


This is essentially yours. So first the upper left is the stop lights. When that fuse is blown, is your stop lights not working? Is it still blowing? Start by looking at the 3rd brake light socket for problems. If that doesn't pan out, let me know I have an easy method to look for and find shorts.

Deal with that situation first. As it may have implications to other things.

Now as far as the door locks are concerned. On the left side of your fuse block you will see 2 silver/metal circuit breakers one above the other. Your top one should be 30A and is the power for the door locks, the keyless entry module and the power seat. If this is the cause of your door lock problem then the seat and keyless entry module would also not work. So what about it? Do those work now?

You can handle it from here.

[Cape Codder]

My stop light flasher fuse was blowing and it turned out to be the trailer harness.
I have found the best place to start looking for wiring problems is anything added after the factory.
98 C1500
Bob

[cfan10]

Ok, so the power locks aren’t working, the driver switch clicks like it is going to work, but doesn’t…same with the other power locks, any help/experience with this will be greatly appreciated thanks.

^Power seats haven't worked in years, ended up switching them around. Do not have the remote for the keyless entry. Thanks.

[Cape Codder]

Does the clicking noise come from the lock actuators in the doors? If so you either need to lube all lock and latch parts or you could have tired actuators that just arn't strong enough. I would first disconnect the actuator and see if you can lock and unlock the door easily by hand if so replace the actuator

[cfan10]

Thanks...the doors lock/unlock without issues by hand. Yes, the clicking is coming from the doors when I hit the switch...