Is the ignition module located behind the glove box or under the hood?

There is probably one under the hood. It appears the glove box too.

http://www.carcarekiosk.com/video/2003_Pontiac_Grand_Prix_GT_3.8L_V6_Sedan_(4_Door)/fuse_interior/replace

the module is actually the head unit in the center of the dash there is a electronic speed control module that will be located on top the interior heater box behind the glove box unless you are lucky enough too have one that was actually assembled in the states those units that where are located under the hood on the outside blower box passenger side of car close to the valve cover side of the box

If you're asking about the ECM (Engine Control Module) it's under the dash behind the glove box.

Then programmable read only memory (PROM) chip that you are asking about is located inside the electronic control module.
This module is located just above the glove compartment in the dash area.
Removal of the glove compartment is required to remove this module. After removing the ECM you will note a small access cover. Remove this cover and you are at the PROM.
Good luck, it is quite easy.

It is either under the hood on drivers side under a cover,or behind the glove box area,up in the dash,the ignition module is most likely the cause,most of the time.

It will either be behind your glove box, or will be located under your hood by the firewall.

Behind the Glove Compartment
1. Open the glove compartment and remove all the items from inside of it.
   
2. Remove the glove compartment assembly retainer screws with a Phillips head screwdriver. Refer to the repair manual for your specific year and model series BMW for the exact location of the screws or carefully look around the perimeter of the interior glove box assembly to locate the screws.
   
3. Locate the lower trim panel retaining screws behind the glove box assembly. Remove the screws with a Phillips head screwdriver and then remove the panel.
   
4. Remove the foot-well air duct.
   
5. Loosen the retaining screws of the control module box to all you to lower it down.
   
6. Turn the cabin air filter panel retaining knob counterclockwise to open the panel. Pull the filter removal tab outward to remove the filter.
   
7. Use a shop vac to clean out any noticeable debris from the cabin air filter housing interior.
   
8. Insert the new filter and reverse the order to reassemble the foot-well air duct, the trim panel and the glove compartment assembly.
   
Under the Hood
9. Open the hood and locate the cabin air filter housing. The housing is located near the cowling on the top section of the firewall. Some models place the housing in the middle of the cowling, on both sides--left and right--of the cowling or on the passenger side cowling. Removal of the cowling and placing the windshield wipers in the upward position may also be required on certain models. Some 7-Series BMWs place the filter housings on both the left and right side undercarriage of the hood.
   
10. Release the cabin air filter duct clamp. This can either be released by unclipping the air filter duct by pressing a retaining lock with your fingers or using a flathead screwdriver to pry off a retaining rod.
    
11. Lift the cover upward--or downward on hood-installed 7-Series BMWs--to reveal the cabin air filter.
    
12. Remove the cabin air filter from the air duct. Vacuum the air duct with a shop vac.
    
13. Insert the new cabin air filter(s) and reassemble.
    

Access the fuse panel from the left of the steering column Relay Center Cooling Fan Controller

• Located behind the left side of the instrument panel.
  

Cooling Fan Controller Module

• Located behind the right side of the instrument panel.
  

Cooling Fan Relay

• Located in the air conditioning cooling fan control module.
  

Electronic Control Assembly

• Located under the left side of the instrument panel.
  

Electronic Engine Control Power Relay

• Located behind the glove box on the right side of the instrument panel.
  

Fuel Pump Relay

• Located behind the glove box.
  

Horn Relay

• Located in the fuse block.
  

In here you can find the location of the Fuse Box, Power Center Distribution and other parts about the electrical system: ZJ-Secc-8W-Wiring-Diagrams (Module & Componentes Location / Page 10, Fig. 16)

I hope help you with this, good luck (rated this help).

The BLOWER MODULE is located on the A/C EVAPORATOR housing located UNDER THE HOOD passenger side firewall. Has 2 electrical connectors. Mounted with 4 screw bolts.Hope this helps

Check the fuses, they're located under the hood and in most vehicles they are under the dash or in the glove box. and check the fuse able link the leads from the alternator to your ignition module. When the battery was hooked up wrong it fried some fuse or the fuse able link, or even the bulb for the ignition light located behind the dash board. you can email me at [email protected] and I'll check my manuals.