This is topic Turn signal not working when headlights are on in forum Tech Talk at Northern California Ford Owners  .


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Posted by 9stangvert3 (Member # 12934) on :
 
Hi guys so I have a 1989 mustang and for some odd reason when I turn on my headlights I can not use my left hand turn signal the right works fine as well as all other lights when I engage the left turn signal the arrow on the dash doesn't illuminate but the bulb is on just not blinking when I turn off headlights the turn signal works fine. I already changed the turn signal instrument and fuses any help is appreciated
 

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Posted by 93ex chp (Member # 9016) on :
 
Check the turn signal bulbs for the left side. Had this happen on my 89 as well and it was one of the bulbs i put new ones in front/rear and problem went away!
 

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Posted by 9stangvert3 (Member # 12934) on :
 
All bulbs are fine
 

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Posted by TommyK (Member # 14208) on :
 
what about the turn signal relay fuse?

[ 2015-12-28, 12:37 PM: Message edited by: TommyK ]
 

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