Author Topic: 70 Cuda Tail lights & side marker lights not working  (Read 11572 times)

Offline Moparal

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #15 on: October 21, 2008 - 08:49:56 AM »
2 wire switch is for a 70. 71 has a 3 wire plug in




Offline 71340RT

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #16 on: October 21, 2008 - 03:37:36 PM »
Rob I don't see anywhere where the relay is grounded to the housing. Here are a few pictures of the inside.


70 Plymouth Cuda 340 4-speed
71 Dodge Challenger RT 340 automatic
1973 Dodge Challenger 360 automatic EFI
2002 Harley Davidson Dyna Wide Glide
2003 Dodge Stratus RT coupe
2009 Challenger RT Classic B5 Blue
2014 Ram Express 5.7 Hemi 4X4

Offline ntstlgl1970

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #17 on: October 21, 2008 - 03:47:38 PM »
Bummer the relay I have doesn't look anything like that one.
70 Cuda, 7.0L Gen-III Hemi, Viper T56 w/9310 gearset, 3.91's, Megasquirt MS3x v3.57, Innovate wideband, Firm Feel upper arms, torsion bars, springs and strut rods, QA1 DA shocks. I did everything on this car except the fancy paint stuff and I drive it...and I can't seem to stop messing with it....

Offline Moparal

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #18 on: October 21, 2008 - 03:54:05 PM »
That's the relay I still have to buy. 70 only

Offline ShelbyDogg

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #19 on: October 21, 2008 - 05:34:26 PM »
Here is the relay as I remember it. I didn't see a ground to the screw and neither did Jeff. It would only work this way if it was either supplying a ground to the lights (if the center pin was hooked to ground)   OR if the switched terminal was getting GROUND from the switch. But then the lights could be left on all of the time, unless a second relay was wired in.
« Last Edit: October 21, 2008 - 05:37:03 PM by shelbydogg »
Rob

3 E-bodies, Megasquirt-1v3.0, Edelbrock Pro-Flo-1, Holley C950, FAST EZ-EFI; say no to carbs...yes to throttle bodies

My Pace Car restoration thread:
http://www.cuda-challenger.com/cc/index.php?topic=44869.0


Offline FY1 RT SE

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #20 on: October 23, 2008 - 06:06:09 AM »
The 70 relay has nothing to do with the on/off function of the fog lamps.  It is only there to turn on the front parking and side marker lights and to trigger the headlights on buzzer if the car is equipped with the A01 package.


Offline 71 DEPUTY

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #21 on: October 23, 2008 - 09:35:38 AM »
Shelby is correct- it grounds out in the device it powers.

in 70 the fog lamps are directly powered thru the switch on the dash- it gets it's power thru the 3 prong yellow bullet connector from the acc. power from the ign. switch.

in 71 the changed it to be powered by a relay from the switch.


what is the colors of the wires that feed this relay?????

Offline 71340RT

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #22 on: October 23, 2008 - 12:56:34 PM »





what is the colors of the wires that feed this relay?????
The colors of the wires on the relay plug are pink, green, and yellow.


70 Plymouth Cuda 340 4-speed
71 Dodge Challenger RT 340 automatic
1973 Dodge Challenger 360 automatic EFI
2002 Harley Davidson Dyna Wide Glide
2003 Dodge Stratus RT coupe
2009 Challenger RT Classic B5 Blue
2014 Ram Express 5.7 Hemi 4X4

Offline 71 DEPUTY

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #23 on: October 23, 2008 - 02:34:33 PM »
ODD COLORS FOR THAT PLUG

TELL ME WHERE it is located and can you get a pic of the plug?????   I've looked in my manuals and can't find that colors of a plug!!!

John Mac

Offline FY1 RT SE

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #24 on: October 23, 2008 - 02:48:24 PM »
ODD COLORS FOR THAT PLUG

TELL ME WHERE it is located and can you get a pic of the plug?????   I've looked in my manuals and can't find that colors of a plug!!!

John Mac

Keep looking you will find it, it is in the WD.

Offline FY1 RT SE

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #25 on: October 24, 2008 - 01:18:36 PM »
Come on guys this isn't rocket science.



Offline ShelbyDogg

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #26 on: October 24, 2008 - 05:52:13 PM »
Come on guys this isn't rocket science.
We still need a wiring diagram.  Why did his parking lights come on when he unplugged the relay.

If you know so much, why don't you just tell us how it should be hooked up.
Rob

3 E-bodies, Megasquirt-1v3.0, Edelbrock Pro-Flo-1, Holley C950, FAST EZ-EFI; say no to carbs...yes to throttle bodies

My Pace Car restoration thread:
http://www.cuda-challenger.com/cc/index.php?topic=44869.0


Offline 71340RT

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Re: 70 Cuda Tail lights & side marker lights not working
« Reply #27 on: October 25, 2008 - 09:43:45 PM »
Here is the plug and the relay is fastened next to the radio on the vertical flat piece of of metal. The pink wire goes into the pink female plug right next to the relay.


70 Plymouth Cuda 340 4-speed
71 Dodge Challenger RT 340 automatic
1973 Dodge Challenger 360 automatic EFI
2002 Harley Davidson Dyna Wide Glide
2003 Dodge Stratus RT coupe
2009 Challenger RT Classic B5 Blue
2014 Ram Express 5.7 Hemi 4X4