rps944
New Member
- Joined
- October 9, 2002
- Messages
- 5
- Reaction score
- 0
- City, State
- Brick, NJ
- Year, Model & Trim Level
- 2002 XLT
Hi all,
I'm in search of an opinion/advice. Vehicle in question is 2002 Explorer XLT w/tow package, early build.
After several days of jumpstarting, I have determined that the truck has a 250ma current drain, key off, etc. Factory specs say no more than 50ma is typical. Chasing down the culprit, it seems that the components behind fuse 2.20 (5A) are to blame. Pulling the fuse reduces the drain to 35ma. This fuse supplies the GEM (pin 1, constant hot), the driver's seat module, and the memory setting (truck has power seats but not position memory option). Disconnecting the power seat doesn't impact the drain. Can a GEM be "bad" and still function? I.e., everything works and nothing is flakey or intermittent. Or am I down the wrong rabbit hole altogether?
With F2.20 removed, everything seems to be working except the 4x4 high and low. (I also disconnected the 4x4 control module before removing F2.20 but that wasn't impacting the drain either). So, it seems that the GEM (or part of it) is drawing about 200ma in the key-off/removed position. Besides deactivating the 4x4, is there anything else I need to consider - like are the airbags still working? Also, before I started the current drain troubleshooting, I ran a full set of OBD-II (Ford-specific) and everything checked OK - no codes in memory or pending.
I know that GEM codes/self-test requires an NGS, or similar, scan tool. Can I replace the GEM myself and "reprogram" it on my own should I need/decide to? Or can I leave this as-is and, if needed, put the fuse back in when I need 4x4? (Which is rare.) Or should I just take it to Ford?
As always, advice/opinions/whatever is very welcome! Thanks!!
Bob
I'm in search of an opinion/advice. Vehicle in question is 2002 Explorer XLT w/tow package, early build.
After several days of jumpstarting, I have determined that the truck has a 250ma current drain, key off, etc. Factory specs say no more than 50ma is typical. Chasing down the culprit, it seems that the components behind fuse 2.20 (5A) are to blame. Pulling the fuse reduces the drain to 35ma. This fuse supplies the GEM (pin 1, constant hot), the driver's seat module, and the memory setting (truck has power seats but not position memory option). Disconnecting the power seat doesn't impact the drain. Can a GEM be "bad" and still function? I.e., everything works and nothing is flakey or intermittent. Or am I down the wrong rabbit hole altogether?
With F2.20 removed, everything seems to be working except the 4x4 high and low. (I also disconnected the 4x4 control module before removing F2.20 but that wasn't impacting the drain either). So, it seems that the GEM (or part of it) is drawing about 200ma in the key-off/removed position. Besides deactivating the 4x4, is there anything else I need to consider - like are the airbags still working? Also, before I started the current drain troubleshooting, I ran a full set of OBD-II (Ford-specific) and everything checked OK - no codes in memory or pending.
I know that GEM codes/self-test requires an NGS, or similar, scan tool. Can I replace the GEM myself and "reprogram" it on my own should I need/decide to? Or can I leave this as-is and, if needed, put the fuse back in when I need 4x4? (Which is rare.) Or should I just take it to Ford?
As always, advice/opinions/whatever is very welcome! Thanks!!
Bob