Would a bad alternator cause the check engine light come on?

Tiny
DANE1962
  • 2004 CADILLAC SEVILLE
  • 131,411 MILES

We have been trying to figure out why the check engine light is on. And we just found out that the alternator is not working. Was wondering if that could be the reason the check engine light is on.

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Thursday, December 1st, 2011 AT 3:51 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,399 POSTS

It should show a battery or charging light. If the check engine light is on, have the computer scanned to identify what turned it on.

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Thursday, December 1st, 2011 AT 5:40 PM

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