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turn signal problem #989871
05/10/11 08:07 PM
05/10/11 08:07 PM
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washington
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AB&E Offline OP
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okay I am wondering if anyone can give me a few ideas why my front turn signal & fender signal will not work ? everything else does except one front signal & it does not light up in side on dash either.any thoughts on this would be its on a 70 cuda
thanks abe

Re: turn signal problem [Re: AB&E] #989872
05/10/11 08:10 PM
05/10/11 08:10 PM
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Valencia, España
NachoRT74 Offline
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everything points out to damaged turning switch. Pilot dash lighst are spliced on same front turning signals. Wires under the column are TAN and LIGHT GREEN.

or maybe those wires or terminals are some loosen


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: turn signal problem [Re: NachoRT74] #989873
05/10/11 08:15 PM
05/10/11 08:15 PM
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washington
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Quote:

everything points out to damaged turning switch. Pilot dash lighst are spliced on same front turning signals. Wires under the column are TAN and LIGHT GREEN.

or maybe those wires or terminals are some loosen




I had ecs restore column & ever since I have had problem. the turn lever feels a little funky.

Re: turn signal problem [Re: AB&E] #989874
05/10/11 08:21 PM
05/10/11 08:21 PM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:

I had ecs restore column & ever since I have had problem. the turn lever feels a little funky.


I'd pull the st wheel and have a look see & seperate the ts/brake electrical connector dangling under the column & Ohm it w the stalk up and down. Does that TS/fender indicator light up when the 4 way flashers are kicked on?


live every 24 hour block of time like it's your last day on earth
Re: turn signal problem [Re: RapidRobert] #989875
05/10/11 08:39 PM
05/10/11 08:39 PM
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I will have to check to see if inside works on flasher I do not remember had trouble last year & its time to drive again.
If it does flash inside with flashers on what does that tell u It tells me nothing as I am lost

Re: turn signal problem [Re: AB&E] #989876
05/10/11 08:51 PM
05/10/11 08:51 PM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:

If it does flash inside with flashers on what does that tell u


That from the 4 way flashers out to the fender is OK (it "turn signals/flashers" use the same large filament in the 2 filament 1157 bulb). What Nacho said I'd start by checking out the TS sw under the st wheel


live every 24 hour block of time like it's your last day on earth
Re: turn signal problem [Re: AB&E] #989877
05/11/11 12:49 AM
05/11/11 12:49 AM
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Valencia, España
NachoRT74 Offline
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if you have rears flashing, flashers has nothing to do on fail.

the only way you can get fronts failing and not rear ( hazzards or turning ) is turning signal damaged or related wires broken or loosen at plug.

front an rear circuits are separated to be able to feed brakes just to rear.


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: turn signal problem [Re: NachoRT74] #989878
05/11/11 02:47 AM
05/11/11 02:47 AM
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Balt. Md
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383man Offline
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If it lights up on the hazzard flashers then it would have to be the turn signal switch. Thats because both the turn signal and hazzard circuts share the same wires from the switch to the lights out front. It just changes the power source that feeds it in the switch. Turn signals are ign feed and hazzards are hot all the time. If you can get a wiring schematic just find the right color feed to that front circuit and test it at the switch for 12 volts coming out of it with the key on and turn signal on. If it has no power like that it is the switch since the other lights work and share the same feed. Ron

Re: turn signal problem [Re: 383man] #989879
05/11/11 09:44 AM
05/11/11 09:44 AM
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Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
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I agree with Ron.My 65 will sometimes not light on DS.The stem screw would work loose and not operate the switch all the way.Also as stated get a service manual.They are invaluable.Rocky


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Re: turn signal problem [Re: therocks] #989880
05/11/11 12:56 PM
05/11/11 12:56 PM
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Grand Prairie,Texas
stumpy Offline
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Make sure the socket is well grounded. That will cause the same trouble and will drive you nuts trying to find it.

Re: turn signal problem [Re: 383man] #989881
05/11/11 01:05 PM
05/11/11 01:05 PM
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Valencia, España
NachoRT74 Offline
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Quote:

If you can get a wiring schematic just find the right color feed to that front circuit and test it at the switch for 12 volts coming out of it with the key on and turn signal on. If it has no power like that it is the switch since the other lights work and share the same feed. Ron




I already told the colors on my first reply TAN one side and LIGHT GREEN the other side


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: turn signal problem [Re: stumpy] #989882
05/11/11 01:07 PM
05/11/11 01:07 PM
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Valencia, España
NachoRT74 Offline
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Quote:

Make sure the socket is well grounded. That will cause the same trouble and will drive you nuts trying to find it.





mmmm actually not if you don't have dash pilot lights either. sounds like a positive fail and not a ground fail.

a ground fail in front turning lights will mostly sure also dim the pilot lights on dash when you turn on the parking lights


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: turn signal problem [Re: NachoRT74] #989883
05/11/11 03:02 PM
05/11/11 03:02 PM
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Balt. Md
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383man Offline
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Quote:

Quote:

If you can get a wiring schematic just find the right color feed to that front circuit and test it at the switch for 12 volts coming out of it with the key on and turn signal on. If it has no power like that it is the switch since the other lights work and share the same feed. Ron




I already told the colors on my first reply TAN one side and LIGHT GREEN the other side




Then test the one to the side your problem is on. It will tell you alot as to where the problem is.
Usually when I have a ground problem in a front lite many times it will light the turn signal indicator on the dash when you put the park or headlites on as it will backfeed thru that circuit looking for a ground. Ron

Re: turn signal problem [Re: 383man] #989884
05/11/11 03:20 PM
05/11/11 03:20 PM
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If my memory is working I checked for power at the socket & no power. I do not believe it is ground as there is no bleed through & the indicator on dash does nothing I was going to just run a wire from rear harness to front light but would rather not. But I do not like lights not working
thanks guys I will look over again this weekend as we have rain again & again &again whers the sunshine this sucks

Re: turn signal problem [Re: AB&E] #989885
05/12/11 12:41 PM
05/12/11 12:41 PM
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Valencia, España
NachoRT74 Offline
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Good luck buddy! I hope will be easy to fix because the RIGHT 70/71 B and E bodies turn signals are REALLY HARD TO COME BY and no reproed yet.


Turn switch availables will require a trimming job on hazzard knob

It could be not more than loosen contacts inside switch assembly what could be fixed though taking care of plastic rivets if needs to be dissasembled.

I would try to fix firts and if not, then replace.

Still the hopes are just on a broken wire below/outside the column


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: turn signal problem [Re: NachoRT74] #989886
05/12/11 01:25 PM
05/12/11 01:25 PM
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Grand Prairie,Texas
stumpy Offline
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Sorry to disagree with you Nacho but in my years as a mechanic I have seen a bad socket ground cause a no turn indicator light on the dash a number of times. It's due to the fact the circuit doesn't draw enough amperes to operate the flasher. Bad grounds can cause all kinds of weird stuff to happen.

Re: turn signal problem [Re: stumpy] #989887
05/12/11 01:33 PM
05/12/11 01:33 PM
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Balt. Md
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383man Offline
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Actually what I meant was that many times a bad ground in a front socket or even a shorted element in the bulb can make the turn signal indicator on the dash lite up but not when the turn signal is turned on but when the lites (park or headlites) are turned on. What happens it the park bulb has no ground and will look for a ground by backfeeding up the turn signal dash indicator circuit and finding a ground liteing up the Turn signal ind on the dash. So if a signal indicator lites on the dash with the lites on you may have a ground in that front circuit. Thats all I meant and even it the ind dont come on you could still have a ground problem. Ron

Last edited by 383man; 05/12/11 01:33 PM.
Re: turn signal problem [Re: 383man] #989888
05/12/11 01:46 PM
05/12/11 01:46 PM
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Grand Prairie,Texas
stumpy Offline
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I've seen that happen also. Like I said bad grounds can cause weird stuuf.

Re: turn signal problem [Re: 383man] #989889
05/12/11 02:05 PM
05/12/11 02:05 PM
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Vancouver, WA
MoparMarq Offline
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Quote:

If it lights up on the hazzard flashers then it would have to be the turn signal switch. Thats because both the turn signal and hazzard circuts share the same wires from the switch to the lights out front. It just changes the power source that feeds it in the switch. Turn signals are ign feed and hazzards are hot all the time. If you can get a wiring schematic just find the right color feed to that front circuit and test it at the switch for 12 volts coming out of it with the key on and turn signal on. If it has no power like that it is the switch since the other lights work and share the same feed. Ron




Agreed.

Quick way to test for good circuitry out to the suspect bulbs (at front turn signal/running lamp assembly, hood mounted bulb, and dash bulb) is disconnect turn signal harness from dash harness.
Then apply a 12V jumper from battery hot terminal on fuse block to the terminal on the dash side of the harness of the suspect corner. TAN color wire is right front, LIGHT GREEN is left front.
If all the lights go on (turn signal at front, hood mounted bulb, and dash bulb), then turn signal switch (or terminal in turn signal switch side of harness connector) is most likely culprit.

If one or more of the bulbs do not light, bad bulb(s) or bad grounds are suspect.

Turn signal switches are repro'd for most of our cars. Not to worry.

Good luck. Keep us posted.

-Marq

Re: turn signal problem [Re: MoparMarq] #989890
05/13/11 01:20 AM
05/13/11 01:20 AM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline
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Quote:


Turn signal switches are repro'd for most of our cars. Not to worry.

Good luck. Keep us posted.

-Marq




not really 70/71s yet, but as stated, lates will work with a hazzard knob trimming job.

------


Yes I'm agreed on ground fails makes weird stuff LOL, but on this case, I think a ground fail on front turning signals will show easier what Ron said ( and also I replied somewhere lol ), more than any other fail...

either way grounds are something to check too


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
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