turn signal/ brake light relay
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=137142
Printed Date: May 02, 2024 at 11:35 PM
Topic: turn signal/ brake light relay
Posted By: brice71
Subject: turn signal/ brake light relay
Date Posted: August 22, 2014 at 8:32 PM
I need to know if anyone could help me narrow a brake light problem I'm having with a 1994 cutlass supreme. Here goes... I only have the left brake light coming on when I hit the brake pedal. When I turn the left signal on while holding the brake the right side brake lights up. When I go to the left signal and back to the off position both brake lights go out until I activate the turn signal again. The 3rd brake light stays on the whole time the brake pedal is depressed. Could it be the brake/turn relay or something else?
Replies:
Posted By: howie ll
Date Posted: August 23, 2014 at 10:23 AM
Measure the grounds each side, ground wire to battery should be less than 3 ohms, OR you have a bad/wrong/pins wrong way bulb.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: davep.
Date Posted: September 09, 2014 at 11:44 PM
I doubt this guy will be back, but he has a bad turn signal switch in the steering column.
Posted By: howie ll
Date Posted: September 10, 2014 at 1:46 AM
Oops, sorry me trying to be clever with no specialised knowledge of that vehicle.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: oldspark
Date Posted: September 10, 2014 at 4:35 AM
LOL...
Yeah, normally a GND issue but I suspect this is a single filament combined flasher/brake bulb in which case it's a switching problem. (Or maybe a LED conversion.)
Posted By: howie ll
Date Posted: September 10, 2014 at 4:39 AM
It gets even more complicated post 2000 when the Germans went to symmetric pins on those bulbs.
-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: brice71
Date Posted: September 10, 2014 at 6:18 AM
Thanks, I'll look to see if the bulbs are correct.
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