Power window relay or control unit

If none of the power buttons on your 2004 Pontiac Grand Prix are working, it could be caused by a few different issues. Here are a few possible causes and solutions:
Fuses - There may be a blown fuse related to the power windows or door locks. Check the fuse box and replace any fuses that are blown.Relay - There may be a relay that controls the power windows or door locks that is faulty. A mechanic will need to diagnose and replace the relay if necessary.Wiring - There may be a problem with the wiring that connects the buttons to the power windows or door locks. A mechanic will need to diagnose and repair or replace any damaged wiring.Switch - The switch that controls the power windows or door locks may be faulty. A mechanic will need to diagnose and replace the switch if necessary.Body Control Module (BCM) - The BCM (Body Control Module) may be faulty which controls the power windows and door locks, and other features on the vehicle. A mechanic will need to diagnose and replace the BCM if necessary.It's important to have the vehicle inspected by a qualified mechanic to diagnose the problem and perform the necessary repairs. Some of the issues can be easy to fix, but some require more extensive repairs and knowledge of the systems.

The following components are used to control the power windows:
• Driver door module (DDM)
• Passenger front door module (PDM)
• LH rear door module (LRDM)
• RH rear door module (RRDM)
• Driver door switch assembly (DDSA)
• RH front power window switch
• LH rear power window switch
• RH rear power window switch
• LH front power window motor
• RH front power window motor
• LH rear power window motor
• RH rear power window motor
• Class 2 serial data link
• DR MOD PWR C/B 30 Amp circuit breaker
• DRIVER DR MOD 10 Amp fuse -- DDSA and DDM logic, DDM internal driver operation.
• PSGR DR MOD 10 Amp fuse -- PDM logic and internal driver operation.
• REAR DR MOD 15 Amp fuse -- LRDM and RRDM logic and internal driver operation

https://s1.postimg.org/njebqcna7/power_windows.jpg

Click on the link for part of wiring diagram. You can see fuse and relay in smart junction box. The smart junction box, behind right hand lower A pillar panel, passenger side. I can't walk you through it, because I'd have to look at it.

Hey Joe, not trying to bug you. If I spend time trying to find info, I'm going to post it, regardless of how many answers on the post. You should do the same. Have a good day.

try running a fault scanner to reset the CPU program in the ECM

I think you are the victim of an otherwise good idea; theft protection that has disabled the electrical system.

I believe you will have better luck going to an MB forum and posting your question there:

Title goes here

A2Resource
a great vw resource site

Relays:
Num.Relay Arrangement and Pinout (with control number stamped on relay)
1A/C Relay (13 or 140)
1A/C Switch
2Radiator Cooling Fan
3Fan Switch High Speed
4Battery, Fuse 23
5A/C Clutch (via pressure and temperature switches)
6Main Fusebox Battery Power, Fuse 19
7Main Fusebox Ground
8Fresh Air Fan
2Rear Wiper Relay (72)
1Main Fusebox Ground
2Main Fusebox Run Power, Fuse 4
3Rear Wiper Motor
4Wipe/Wash Signal from Switch
3Digifant Control Unit (30 or 32), Motronic OBD1 Control Unit (109)
1Main Fusebox Ground
2Tachometer
3Main Fusebox Start/Run Power
4Main Fusebox Battery Power
5To ECU (relay ) (1990 G60, ABA/VR6 OBD1 only)
6To ECU and Engine Electronics
4Load Reduction Relay (18)
1From Ignition Switch Run Power
2To Main Fuse Box Run Power
3Main Fusebox Battery Power
4Main Fusebox Ground
5Low Coolant Level Control Unit (43)
1Main Fusebox Start/Run Power
2Low Coolant Level Sensor
3Coolant Temperature Sensor, Gauge
4Main Fusebox Ground
6Flashers (21)
1Main Fusebox Ground
2Flasher Output
3Flasher Input/Power
4X/6 (Trailer Light)
7Headlight Washer (33)
1Main Fusebox Ground (B/4 to C/3 to Ground)
2Headlight Washer Pump
3Headlight Switch Pin 56 (headlights) (B3 to D4 to light power)
4Main Fusebox Battery Power (B/5 to Y/2)
5Windshield Washer Pump (B/1 to B/2 to washer pump power)
8Wash/Wipe/Intermittent Relay (19 for standard relay, 99 for variable intermittent module)
1Main Fusebox Ground
2Intermittent Switch
3Main Fusebox Run Power, Fuse 5
4Park/Low Signal (ground when parked, positive when on low speed)
5Wiper Motor Low Speed Output
6Wash Switch (positive for front wash)
9Seat Belt Warning Control Unit (4 or 29)
1Main Fusebox Ground
2Seat Belt Switch
3Door Switch
4Seatbelt Light
5"Key In" Power from Ignition Switch
6Main Fusebox Start/Run Power
7Automatic Shoulder Belt Controller
9Radio/Lights Buzzer (36)
1Main Fusebox Ground (not used)
2A1/4 (Left Parking Lights)
3Vehicle Speed Sensor
4Seatbelt Light (not used)
5"Key In" Power from Ignition Switch
6Main Fusebox Start/Run Power (not used)
7A2/2 (Right Parking Lights)
10Fog Light Relay (110 for fog lights with low beam headlights only, 53 for parking light/high beam fog lights)
1Parking Light Power
2Headlight Switch Headlight Power (Low/High)
3Fog Light Switch Power, Fuse 10
4Main Fusebox Battery Power
5Main Fusebox Ground
6Low Beam Headlight Power
11Horn (53)
1Main Fusebox Start/Run Power
2To Horns
3Main Fusebox Ground
4From Horn Button
12Fuel Pump Relay (80, 67 or 167)
1Main Fusebox Starter Power (not used)
2Main Fusebox Start/Run Power
3To ECU (Fuel Pump )
4To Fuse 18, Fuel Pump, Oxygen Sensor Heater
5G2/6 (not used)
6Main Fusebox Battery Power From 30B
7G2/7, T1 (not used)
8Main Fusebox Ground (not used)
9M/4, U1/8, G2/5 (not used)
12Glow Plug Relay (102 or 104)
1Main Fusebox Starter Power
2Main Fusebox Start/Run Power
3Engine Temp Sender (preheat)
4Glow Plugs (Z1)To Fuse 18 (not used)
5G2/6 (not used)
6Main Fusebox Battery Power From 30B
7G2/7, T1 (not used)
8Main Fusebox Ground
9Water Separator, Glow Plug Light

remember to check out the website below for more help
http://www.xjamiex.com/mk2resource/electrical/CE2.html

Check your buttons on the control panel. You should have 1 that is horizontal to the layout, usually at the rear of the drivers door control panel. This is a safety lockout for all the power windows. It makes the windows not work so kids can not play with the windows or animals kept inside the car can not accidently run the windows and get caught by putting their paws on a control with the head out the window.
Usually there is a relay on each door, but you could have broken a power relay before a fuse had the opportunity to break. Autozone.com website has free fusebox and wiring diagrams for free. Just register your vehicle and the diagrams are free.

If none of the switches work on any of the doors, then it's a fuse/relay problem. If just one switch is the problem then check the power to the switch. Sometimes the wire harness becomes disconnected underneath the switch from slamming the doors. Hope this helps.

if none of them work look for a master fuse in the fusebox, or even a relay or fuseable link under the hood. your local auto parts store might be able to tell you the location of these

Pull the accessory relay out of the power box, turn on the key, and probe the relay socket with a voltmeter or test light. There should be two hot terminals. One turns on the relay and one powers the windows.
http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=62087