Electrical issues after replacing the starter with the battery connected

Tiny
CANADIANTACTICS
  • MEMBER
  • 2014 FORD FIESTA
  • 1.0L
  • 3 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 120,000 MILES
When changing my starter, I forgot to disconnect the battery and created a spark at the starter. After that my airbag light came on. Then a few days later my wipers and wiper fluid stopped. Then a few days after that my reverse lights stopped. Then a few days later my heated seats stopped.
Sunday, April 10th, 2022 AT 1:10 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 14,785 POSTS
From the description it sounds like it could be a bad ground that all of them share through the BCM and an individual ground. Take a look at the attached diagram, Grounds 201 and 203 are both on the left side of the dash and have multiple wires going into a single terminal. Those connections commonly start to fail from internal corrosion.
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Sunday, April 10th, 2022 AT 2:23 PM

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