No Power Windows, Locks, Or Keyless Entry?

SCZ · July 28, 2008

I noticed yesterday that the keyless entry for my 03 Silverado would not operate. Then I noticed that the passenger side window & power locks would not operate. I have experienced a very slow window motor in the past and chose not to replace since the window would still reach the top. I checked fuses yesterday as well and found nothing blown. Does the wiper motor & power door lock work on the same circuit?

minibike132 · July 28, 2008

The keyless entry reciever is the Front Passenger Door Module (FPDM), if the PDM fuse (10amp) in the left instrument panel fuse block is not blown I would try unplugging it for about 10 minutes and then plugging it back in. Sometimes these modules can lock up and completely powering them down can wake them up. If that doesn't work I would need to plug a Tech-2 in to see what perameters it is showing. For everything to work you need 12 volts in, a good ground, a functioning data line and all the other modules need to be communicating with the FPDM.

SCZ · August 26, 2008

Checked the fuses and they were all ok. Removed the door panel and found No power is getting to the passenger side door. When operating the window motor with a power probe, the motor operates very slowly. I feel that it is on its last leg. Could the window motor be drawing to much power and back feeding and short out the board in the passenger switch assembly? Could it have also back fed and damaged the board in the drivers switch assembly? The Drivers switch assembly will operate the driver side functions (Lock, window, mirror).

minibike132 · August 27, 2008

Removed the door panel and found No power is getting to the passenger side door

On which circuit because there should be a couple of powers in there.

When operating the window motor with a power probe, the motor operates very slowly. I feel that it is on its last leg.

This could be but you are reading way too much into the circuit. It isn't drawing anything unless the switch is activated. Your theory doesn't explain no locks etc.

Please detail the steps you have taken, you can leave out how you took off the switch or door panel. Tell me what you used (test lamp or multimeter and what kind) to check for voltage and where you placed the probes. If you are using a power probe for anything other than applying power or ground to a circuit (which is dangerous if you don't know where you should be applying them) then you are using the power probe for more than you should. Any experienced electrical tech will tell you to throw away your power probe. Also you said the fuses were good but you didn't say if you pulled the fuse out for awhile.

minibike132 · August 27, 2008

You need 12v at connector 1 terminal 2 and connector 2 terminal 14 both should be orange wires. You also need a good ground at connector 1 terminal 3. My suggestion is to use pins to backprobe (do not unplug them and check the face of the connector) and go from the ground on terminal 3 to the power circuits with a test light. Forget about your motor till you make the door module work, these are the first steps in checking that.

cwood · September 12, 2008

I have the same problem with my truck and I can not find the PDM 10 Amp fuse that you are talking about. I have a DDM 15 Amp I just unpluged it and wait 10 min.