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I have a Regal Gran Sport Sedan 3800

Tiny
COREY 971
  • MEMBER
  • 1991 BUICK REGAL
  • 315,000 MILES
I have a regal gran sport sedan 3800. The left rear turn signal is not working. I checked the 4-ways snd they work fine. Changed all bulbs in the rear and still nothing. Is there a switch or module I need to look at or could it just be the flasher?
Friday, February 1st, 2013 AT 5:53 PM

6 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Did you check voltage and ground at the bulb socket? Sometimes the bulb doesn't make good contact. Could be problem with multifunction switch?
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Friday, February 1st, 2013 AT 6:26 PM
Tiny
COREY 971
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  • 4 POSTS
The 4-ways are working so I ruled out the socket.
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Friday, February 1st, 2013 AT 7:38 PM
Tiny
COREY 971
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  • 4 POSTS
Tail lights, break and patking all wotk as well
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Friday, February 1st, 2013 AT 7:40 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I'd have to get at the turn signal switch, yellow wire carries voltage for left turn rear. If there is air-bag in steering wheel, there is a safety issue. Safety is your responsibility. You will have to disarm the air-bag first, even then?
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Friday, February 1st, 2013 AT 9:08 PM
Tiny
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  • 4 POSTS
No airbags. So it is most likely the muliti. Switch in the column..
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Saturday, February 2nd, 2013 AT 1:14 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I believe your headed in the right direction. Goodluck
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Saturday, February 2nd, 2013 AT 3:24 PM

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