• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 V6 Mustang Tech

Gem module

  • Thread starter Thread starter Cws
  • Start date Start date Jan 21, 2019
C

Cws

New Member
Jan 21, 2019
5
0
1
Arizona
Jan 21, 2019
#1
  • Jan 21, 2019
  • #1
I have a 2004 V6. My gem module went bad and is not repairable. The repair place said I have to program the replacement. Is this something that I can do or does a dealer have to?
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Jan 23, 2019
#2
  • Jan 23, 2019
  • #2
Here's something that MAY help.

ForScan ODB2 scanner w ELM327 USB
https://www.stangnet.com/mustang-forums/resources/forscan-odb2-scanner-w-elm327-usb.57/

There is also a possibility that the autoenginuity ODB2 can do the job. Do your homework.
https://www.autoenginuity.com/

The other option is to go to car-part.com for a replacement GEM and replace it yourself. Then find a local shop with a J2534 programmer that can do it for you.

Or my Ford Service manual does not list the re-programming as a requirement for the replacement of the GEM. So maybe the dealer isn't being "truthful".

Note, Ford does sell access to full dealer service on a short term basis. It's not too expensive if you have the correct Ford tool. Look at the 72 hour option ($29.95)
https://www.motorcraftservice.com/Purchase/ViewProduct

Finally there's the dealer for the re-programming.
 
Last edited: Jan 23, 2019
C

Cws

New Member
Jan 21, 2019
5
0
1
Arizona
Feb 5, 2019
#3
  • Feb 5, 2019
  • #3
Thanks for the help. But I replaced the old gem and had ford flash it. As far as I can tell the problem is still there. I have a 0.25 amp draw. when I take out the number 6 fuse under the hood it goes to zero. What else could be the problem? Thanks
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Feb 5, 2019
#4
  • Feb 5, 2019
  • #4
Need to confirm EXACTLY which fuse is in question using the numbering from the following link It does make a difference if fuse F1 (Engine bay) or F2. (central junction box).

For example. IF the fuse in question is actually F1.6, then this fuse feeds several other fuses. More trouble shooting needed.

1999-2004 MY fuse panel schedule:
https://www.allfordmustangs.com/for...r-swap-wont-fire-please-help.html#post2669271
 
You must log in or register to reply here.

Similar threads

0
  • Locked
security
  • 05turboturdpt
  • Sep 14, 2025
  • SN95 V6 Mustang Tech
Replies
4
Views
232
SN95 V6 Mustang Tech Sep 26, 2025
Noobz347
D
Possible Parasitic Draw... Follow My Journey
  • daveinfl33777
  • Jan 11, 2025
  • SN95 V6 Mustang Tech
  • 2 3
Replies
48
Views
3K
SN95 V6 Mustang Tech Apr 4, 2025
dennisc
D
S
ABS flare nuts (*the 2 on the side*)
  • saf_blu302
  • Feb 17, 2026
  • 1994 - 1995 Specific Tech
Replies
2
Views
137
1994 - 1995 Specific Tech Feb 17, 2026
AeroCoupe
O
Forscan experts? No fog lights!
  • optionizerSS
  • Aug 26, 2025
  • 2005 - 2009 Specific Tech
  • 2
Replies
35
Views
2K
2005 - 2009 Specific Tech Feb 19, 2026
optionizerSS
O
L
2003 mustang v6 3.8 fuel issue
  • lacole1
  • Jul 20, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
3
Views
88
1996 - 2004 SN95 Mustang -General/Talk- Jul 26, 2026
apple99Mustangdude
A
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 V6 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?