What damage would reversing positive and negative?

1989 MERCURY SABLE
68,000 MILES
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AWELKY
  • MEMBER
  • 1 POST
Cause when battery jumping cables were placed on the wrong terminals momentarily? My battery was low and tried to jump the car the cables were reversed and when I tried a fresh charged battery no lights or electrical voltage. Does the wiring harness have fuse links protection?
Nov 19, 2011 at 9:12 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Check main fuses under hood, and yes there are fuseable links. However, damage can still happen to different components. Most often, main fuses take the hit in the power distribution box under the hood.
Nov 19, 2011 at 9:25 AM
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