Replaced BCM but no accessories?

Tiny
INFINITYCOM
  • MEMBER
  • 2005 FORD MUSTANG
  • 4.0L
  • V6
  • 2WD
  • MANUAL
  • 160,000 MILES
Replaced BCM and now the headlights and windows work but no accessories, won’t crank and OBD port does not work. The old one had corrosion due to water getting in car due to clogged rain vents. I thought I was ordering the same model number but I misread the number. It fits perfectly but now these problems exist
Sunday, January 4th, 2026 AT 8:00 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,430 POSTS
Yep, water damage is rough, you need to clean the connectors with electrical terminal cleaner and a tooth brush, then the BCM must be programed to the car, you cant just install a used BCM and have it work, I would talk to these guys, give them a call and they can help get it programmed for you.

https://www.flashmastersecm.com

Please upload a short video in your response of the problem, so I can see what's going on

Ken

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Monday, January 5th, 2026 AT 10:41 AM

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