Fowlhunter
Full Member
I own a 2002 and am looking for the MBEC pinouts and the fuses that power them. Primarly the SEO connector location.
Thanks
Thanks
-
If you currently own, previously owned or want to own an Avalanche, we welcome you to become a member today. Membership is FREE, register now!
2002 MBEC pinouts and their fuses?
- Thread starter Fowlhunter
- Start date
MS03 2500
PM 2017
PM 2015
SM 2014
PM 2013
PM 2012
SM 2011
SM 2010
SM 2009
SM 2008
SM 2007
SM 2006
Full Member
itsstopher
PM 2018
PM 2017
PM 2016
PM 2015
PM 2014
PM 2013
PM 2012
SM 2011
SM 2010
SM 2009
SM 2008
SM 2007
SM 2006
SM 2005
SM 2004
SM 2003
Full Member
Fowlhunter
Full Member
MS03 2500 said:
I appreciate the diagram but I thought the 03 and up were different. I thought the harness for the electric brakes was different as well?
MS03 2500
PM 2017
PM 2015
SM 2014
PM 2013
PM 2012
SM 2011
SM 2010
SM 2009
SM 2008
SM 2007
SM 2006
Full Member
So are u trying to find switched power. 
Fowlhunter
Full Member
Yes, that is correct.
Thanks
Thanks
Fowlhunter
Full Member
Fowlhunter said:
I would also like to know which fuses are used and if there is any RAP locations available in the MBEC.
I found some info, I think the SEO location on the 02 is C4 and I think the pins are as follows but maybe someone can verify this?
Cavity Wire Color Circuit # Function
A ORN 2340 Hot at all times
B --- --- Not used
C BLK 2550 Ground
D YEL 243 Hot in Accessory or Run
E PNK 739 Hot in Run or Start
F ORN 2240 Hot at all times
Thanks
Fowlhunter
Full Member
ItsStopher said:
Thanks for the info, lots of good info but I didn't see anything regarding the MBEC. Bookmarked!
Firetrader
New Member
- Joined
- May 15, 2020
- Messages
- 1
New member & first post here...Thanks for this helpful information! I know this is reviving an old post, but I wanted to share for others what I confirmed on my 2002 Avalanche 1500 Z71 SEO Connections by testing each pin.
A - Always Hot (15A SEO underhood fuse)
B - Run/Start Hot
C - Accessory/Run Hot
D - Ground
E - Not Used
F - Always Hot (30A SEO underhood fuse)
Most of the SEO posts I have seen refer to 2003+ models. I found my 2002 Avalanche and my 2001 Yukon XL have the same connector but a much different circuit layout than 2003+. I bought the connector plug, pins & crimper online and will be using the 15A SEO connection for a small powered Kenwood Subwoofer by changing the underhood fuse to the 10A limit of the Sub. It was a hassle to get electrical parts but will be a much cleaner install than running a wire through the firewall to the battery. I now have future access to tap power to PIN F for up to 30A fused power.
A - Always Hot (15A SEO underhood fuse)
B - Run/Start Hot
C - Accessory/Run Hot
D - Ground
E - Not Used
F - Always Hot (30A SEO underhood fuse)
Most of the SEO posts I have seen refer to 2003+ models. I found my 2002 Avalanche and my 2001 Yukon XL have the same connector but a much different circuit layout than 2003+. I bought the connector plug, pins & crimper online and will be using the 15A SEO connection for a small powered Kenwood Subwoofer by changing the underhood fuse to the 10A limit of the Sub. It was a hassle to get electrical parts but will be a much cleaner install than running a wire through the firewall to the battery. I now have future access to tap power to PIN F for up to 30A fused power.