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1991 Buick Regal Gran Sport Sedan 3800 Left Rear Turn Signal Working Checked

1991 BUICK REGAL
315,000 MILES
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COREY 971
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  • 4 POSTS
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?
Feb 1, 2013 at 9:53 AM
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JDL
  • ✓Experienced 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?
Feb 1, 2013 at 10:26 AM
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COREY 971
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  • 4 POSTS
The 4-ways are working so I ruled out the socket.
Feb 1, 2013 at 11:38 AM
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COREY 971
  • MEMBER
  • 4 POSTS
Tail lights, break and patking all wotk as well
Feb 1, 2013 at 11:40 AM
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JDL
  • ✓Experienced 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?
Feb 1, 2013 at 1:08 PM
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COREY 971
  • MEMBER
  • 4 POSTS
No airbags. So it is most likely the muliti. switch in the column. .
Feb 1, 2013 at 5:14 PM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
I believe your headed in the right direction. goodluck
Feb 2, 2013 at 7:24 AM
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