16 replies to this topic

[soloflite]

when I turn on my hazards all blinkers are blinking. with hazards off and I just use turn signals all that happens is the lights just turn on they do not blink. Is there a separate relay  between the flashers or hazards.

[Russ90Daytona]

This sounds like a bulb issue, or a bulb is not making good contact in a socket.

[soloflite]

I don't think its a bulb. When I put the hazards on, all bulbs flash. With the hazards off as normally being driven and I use turn signals the bulbs dont flash they just light up and stay on permanent until I turn the signal off

[soloflite]

Just got off my lazy duff and looked n the fsm.  Hazard relay is n fuse panel.  Turn signal relay is the one that dangles next to the fuse panel.  So thay r separate..  so i know now what i need to replace.

Edited by soloflite, January 30, 2012 at 09:17 pm.

[Bob ONeill]

Kwel.

[John Wood]

A steady on bulb usually means one of the filaments in the bulbs is burned open and there is not enough current to operate the thermal flasher. The Hazzard flashers use the filament for the brake lights (brighter).  Replacing the flasher may or may not fix the problem and if not, you may have a lamp on both sides that is bad.  It could be front or rear, one side or the other,   Somtimes a dirty ground will due this too since that can act like an open circuit.

[Bob ONeill]

John, if all the bulbs flash properly when the hazzard lights are on isn't that an indication that the bulbs are OK?

[John Wood]

Bob ONeill, on January 31, 2012 at 09:08 am, said:

John, if all the bulbs flash properly when the hazzard lights are on isn't that an indication that the bulbs are OK?

A lot of these bulbs have dual filaments inside the glass.  i.e. tail light, brake light, and turn signal.
I believe the hazzard flasher operates the filament for the brake lights.  The turn signal uses a different filament within the same bulb IIRC.

Poor grounding is also a cause for the turn signal to not operate (i.e. steady light but at a slightly dimmer output).  The OEM flasher is a thermal flasher that requires the full current that passes through all the associated bulbs before it will start its break/make contacts to operate (flash).

Of course..... a bad flasher is always a possibility, but not usually the problem.  

[Bob ONeill]

Cool I didn't think of that. Each system uses a different part of the blub.  Interesting.

[TurboPacifica]

the 88's have two relays.
I found thisout when mine failed.
I had one that was the wrong speed in my last Daytona.
It flashed real fast. I liked it.
maybe I'll pull it and put it in my current car.

[ChargedDust]

Yes, hazards and turn signals use different flasher units, they may be interchangeable, try swapping them and see if the probelm reverses. But it does sound like your turn signal flasher is at fault.

[soloflite]

changed the signal relay, all is good, bulbs were fine..

[Russ90Daytona]

good deal, glad you got it fixed.

[george w]

The hazard flashers use the same ( brighter ) bulb filaments as the turn signals. The lower wattage filament ( when theres a dual filament bulb involved ) is for the parking / running lights.

[John Wood]

george w, on February 2, 2012 at 05:58 am, said:

The hazard flashers use the same ( brighter ) bulb filaments as the turn signals. The lower wattage filament ( when theres a dual filament bulb involved ) is for the parking / running lights.

Where do the brake lights fit in?  I think on these cars, You can have a turn signal flashing with the brake lights on, but the hazzards quit flashing with the brake pedal pushed.
I remember on some old Fords, the turn signal being on defeated one of the brake lights and if you were behind someone who was pumping their brakes with a turn signal on, you would see a flash from the right and then a flash from the left.  You had no idea of where they were going.
Not exactly one of Ford's 'better ideas' .  

I could swear on some cars that I had, a seperate 1156 bulb was used for the parking/running lights, and the 1157 dual filiment was configured for: 1 filiment for the brake light & hazzard flasher, and the other filiment for the turn signal.  I'll have to check the older books, and I could be wrong, or perhaps they changed the design.   Certainly today's cars have turn signal lights that are much brighter than older cars. (sometimes too bright for my eyes).

[John Wood]

OK, just looked in a AG body wiring manual and sure enough it is different than what I thought.  You are right George.  Hazzards and turn signals are on the same filament.

[george w]

Chrysler, as well as many other manufacturers are all over the place when it comes to the lamp and bulb configuration between the running lights, brake lights and turn signals. From my experience the dual filament bulbs are always configured with the lower wattage filament for the running lights and the higher wattage filament for the "secondary" purpose whether that be brake light only, turn signal only or both sharing the same filament. On my 89 LeBaron convertible for example the outer rear lamps use two dual filament bulbs, wired in parallel with the lower wattage being the running lights and the higher wattage sharing turn and brake light functions. The "inner" lamps which are part of the lens that extends across the deck lid use a single filament lamp for running lights only. My 1994 LeBaron, which is fundamentally the same car, has the split red/amber taillights and trunk panel section. The upper red half of the outer lamps use a dual filament bulb that does running lights on the lower wattage filament and brake lights for the higher wattage filament. The lower amber section also uses a dual filament bulb but oddly, the lower wattage filament isn't used at all and the higher wattage filament is the turn/hazard flasher.

On the 89 with the "all red" tailights the brake light circuit passes through the turn signal switch and is interrupted by the turn signal flasher and the emergency flasher switch circuits. Not so on the 94 where the turn signal and emergency flashers are independent of the brake light circuits.

The wiring gets a little complicated as the front parking lights / turn signals are also involved but bypass the brake light switch.