Question about 1999 Oldsmobile Aurora

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Turn signals work intermittently. All bulbs were checked and replaced the flasher. Turn signal switch was replaced a few years ago.

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Still check and replace switch

Posted on Nov 28, 2010

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88 Jeep Cherokee, left turn signals don't work. Right signals flash as they should. Emergency flashers work as well. When the left turn signal is activated, the dash arrow lights up, the front bulb lights...


Quite a puzzle you have that seems impossible, though such things weren't unusual in the old days of bimetal flasher units. The modern electronic flasher relay is designed to flash at a speed dependent on the amount of current drawn by the circuit so if a bulb goes out the speed doubles or thereabouts, giving the driver an indication something is wrong.
Broadly speaking the flasher unit will operate as it is designed within a current range so if there is too much current flowing or not enough it probably won't work at all.

The turn signal switch is usually a very reliable thing and as the left hand lamps light it is fair to assume it is working ok. If the switch is accessible it would be simple to measure the current being consumed by the circuit, which would be nearly 4 amps with the engine running at a fast idle. If it isn't then I suggest you revisit the lamp grounds and other connections.

My instinct is to suspect the hazard warning switch. It is often an unnecessarily complex switch and wiring arrangement and often responsible for turn signal malfunctions. Mostly operating the switch rapidly for a few minutes puts matters right, though if it doesn't I suggest you check the multiway connector behind the switch.

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1998 Toyota Avalon turn signals stopped working


Its either the flasher's, the turn signal lever switch or the hazard switch.
Try pulling one of the flashers out and see if the other system starts working.
Has anyone installed aftermarket electronics or tampered with the wiring in either system? Like an ALARM system? Stereo?

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Sounds like a bad turn signal switch. I bet if you wiggle the turn signal lever while you have your foot on the brake pedal the left and right brake lights ill intermittently work.

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Turn signals & Flashers will not work on 2002 Dodge Dakota, replaced Combination Flasher unit, still no turn signal or Flasher


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 !
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
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Jul 03, 2017 | Cars & Trucks

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I need to find the flasher relay for a grand marquis 2001 .does it has one? My turn signals wont work I can hear the sound but don't even flash


Yes, it does have a flasher, although it may be a combined unit with the hazard flashers relay. So you hear the clicking of the flasher relay? That seems to indicate the relay is working properly. Have you checked the bulbs and the turn signal fuse? Any turn signal bulbs light up anywhere, front or back?
How about your brake lights, do they work? Your car may have separate, stand alone turn signals in the rear, but many American cars use the same bulb and same filament on the bulb for the brake lights and turn signals. If your merc is like this and the brake lights work, then the bulb must be good.
Turn on the hazard flashers and see if all bulbs work and flash at each corner of the car. This would be the same bulb as for the turn signals. If they work, it could be a bad turn signal switch, may even be the flasher relay somehow malfunctioning, and in a few cases, a bad hazard switch can affect the turn signal switch. Check fuses and bulbs first. If you have any type of body control module that controls lights and other accessories, you may have to investigate that. I know I'm not being very helpful, just throwing out a few suggestions. Good luck.

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1 Answer

Turning signals not working


If you have checked the fuse and it is okay the you prob have a bad flasher switch. On the Olds the flasher switch and the turn signals use the same switch. There were recalls about the switch being bad a few years ago and they replaced them. If you hit the flasher switch and it doesn't work either then next step would be replace it.

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1 Answer

My signal turn sometime is not working


When the signal is not working does the indicator in the dash stay lit ( green arrow) ?? if so check all the bulbs..another possibility may be a weak signal flasher . replace the flasher and or burned out bulbs. note.. some bulbs do burn out and work intermittently due to the fillaments contacting now and then due to bumps in the roadway. if these solutions dont work you may need a signal switch in the steering column....good luck

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1 Answer

1998 Dodge Cavavan. Flashers work OK. Left turn signal works sometimes.


now when you say flashers work, I'm assuming you mean the 4 ways or Emergencys. As to the intermittent left signal working, I would first inspect both front and rear bulb sockets for corrosion and bulb condition. (Replace the Bulb, you can then rule it out). Clean and reinstall. If your problem persists, I would suspect your multi-switch contacts or connectors (Turn Signal Arm/Stick on the column)

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1 Answer

1999 Nissan Altima GXE Turn signal problem


you have a busted bulb, your hazard may be working fine but the bulb is double contact so one part is working and the other is not. just check which bulb is busted.

Apr 20, 2009 | 1999 Nissan Altima

1 Answer

Signals and Four Way Flasher working intermittently


Replace the hazard switch, It has the turn signal flasher built in to it.

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