How do you replace turn signal flasher - 1997 Pontiac Bonneville

Hello. It seems your vehicle has a 'shorting/malfunctioning turn signal switch and/or 'grounding' wires in the wiring harness. Good luck and keep me informed; if you want to.

Check fuse.

There should be a turn signal flasher and a hazard flasher. They are two different parts. If you replaced the hazard flasher and not the turn signal flasher than I would start by replacing the turn signal flasher.

One thing you can do once you find the turn signal flasher is to unplug it and use a jumper wire between the two pins of the connector then turn the key to the run position and place the turn signal lever in the left or right position. If the turn signal lights know light up than the turn signal flasher is the problem

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Hi Jeff , do you know how to test electrical circuits using a DVOM - digital volt ohm meter ? How to read an use a wiring diagram to pin point testing points in the turn signal circuits ? Here is a web site for free wiring diagrams http://www.bbbind.com/free_tsb.html .Enter vehicle info year ,make , model an engine size . Under system click on lighting ,then under subsystem click on turn signal lamp , Click the search button then the blue link . Then watch this videos an then test the power and grounds ,inputs to the Combination Flasher !
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you have a separate flasher for the turn signals.this is what your problem sounds like.if all your lights are working including the signal indicator on the dash then it will be the signal flasher.if you turn on the hazard flashers and locate it under the dash, this will show you what the turn signal flasher will look like.then you will have to look for the flasher unit on the fuse panel that looks like the hazard flasher.replace the turn signal flasher and you will have your signal flashers again

Check that the bulbs are lighting and if they don't replace as needed. If they are fine the turn signal flasher is bad. Replace the flasher and the problem is fixed. If you have to replace the flasher the easy way to find it is turn your turn signal on on listen for the clicking . Find the clicking and you found your flasher.

I have the exact same problem. I replaced both underdash relays, checked all fuses and replaced the turn signal switch. Still no turn signals. Did you figure out what was wrong with yours?

did you replace the turn signal flasher or the emergency flasher? turn on the emergency flasher lights and pull that flasher if they quit working you changed the wrong one.

Flasher unit is bad. Replace flasher

replaced turn signal flashers and muti switch turn signal still won't work Why?