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1973 Duster wirnig issues...Help #858656
11/20/10 07:15 PM
11/20/10 07:15 PM
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Dallas, Oregon USA
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firtdog Offline OP
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I have an 1973 Duster I just got, I've been having some problems getting the headlights and tail lights to work. I've changed the HL switch the bright switch and have had no luck. I tested the bulkhead and am getting no power. Does the cluster panel have anything to do with that??

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858657
11/20/10 07:26 PM
11/20/10 07:26 PM
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Grand Prairie,Texas
stumpy Offline
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No the dash won't keep the HL and TL from working unless you have the amp gauge disconnected. Are you getting power to the headlight switch?

Re: 1973 Duster wirnig issues...Help [Re: stumpy] #858658
11/20/10 07:36 PM
11/20/10 07:36 PM
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Dallas, Oregon USA
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firtdog Offline OP
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No. I have the wiring diagram and the tan wire that comes from the fuse box is dead too.

Re: 1973 Duster wirnig issues...Help [Re: stumpy] #858659
11/20/10 07:43 PM
11/20/10 07:43 PM
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firtdog Offline OP
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One other thing... I do have the two parking lights and front side markers working. Just cant get power to my head lights and tail lights. I am very confused.

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858660
11/20/10 07:46 PM
11/20/10 07:46 PM
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Dallas, Oregon USA
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So I must be getting some power???

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858661
11/20/10 07:58 PM
11/20/10 07:58 PM
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Grand Prairie,Texas
stumpy Offline
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Have you checked for power at the headlight and tail light bulbs.

Re: 1973 Duster wirnig issues...Help [Re: stumpy] #858662
11/20/10 08:03 PM
11/20/10 08:03 PM
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Yes I am getting no power. I did jump from the front park lights at the bulkhead and the head lights did come on. But everything on the other side of the bulkhead to the headlights is dead...

Last edited by firtdog; 11/20/10 08:04 PM.
Re: 1973 Duster wirnig issues...Help [Re: stumpy] #858663
11/20/10 08:07 PM
11/20/10 08:07 PM
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Lincoln Nebraska
RapidRobert Offline
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take the black bakelite electrical connector off of the HL sw & jump fire to the terminals on the connector which'll tell you if the prob is downstream or in the HL sw itself


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Re: 1973 Duster wirnig issues...Help [Re: RapidRobert] #858664
11/20/10 08:09 PM
11/20/10 08:09 PM
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Where should I pull the power from???

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858665
11/20/10 08:17 PM
11/20/10 08:17 PM
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RapidRobert Offline
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The upstream input side of the fuse box. Jumper wires w alligator clips are real handy for this


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Re: 1973 Duster wirnig issues...Help [Re: RapidRobert] #858666
11/20/10 08:42 PM
11/20/10 08:42 PM
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Well I did it and can only get power to turn on my front park lights and the light for the back of the heater display. Any other ideas???

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858667
11/20/10 08:55 PM
11/20/10 08:55 PM
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Grand Prairie,Texas
stumpy Offline
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Next thing would be to check the condition of tha blukhead connector on the firewall.

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858668
11/20/10 09:03 PM
11/20/10 09:03 PM
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For the headlights power will go out from the HL bakelite connector down to the dimmer sw on the floor then up to the firewall bulkhead connector then on out forward to the headlights. the taillights (small filaments in the rear bulbs)are a seperate circuit & go out from the HL sw to a pull apart connector inside the dr side kick panel then rearward w 1 more pull apart connector rearward (most likely in the trunk) from that kickpanel connector to the tailights themselves. On the taillights I'd take off the dr kickpanel & jump fire to the 1 wire that feeds both taillights and if no light continue to work rearward until you find the open. On the headlights I'd pull the front half of the firewall black bulkhead connector and jump fire from the battery positive to the 1 out wire to the headlight brights and to the 1 out wire to the headlight low beams. This'll tell you if the prob (the open) is forward closer to the lights themselves or upstream back from the other (rear) half of the firewall black bulkhead down to the floor dimmer sw (I'm assuming the dimmer sw is getting fire) & if not from the DS to the HL sw. unless there's been excessive amperage flowing/frayed insulation (rare on the insulation prob) wiring goes bad (open or high resistance) at the terminals/connections at the ends


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Re: 1973 Duster wirnig issues...Help [Re: stumpy] #858669
11/20/10 09:08 PM
11/20/10 09:08 PM
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Dallas, Oregon USA
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It seems to be pretty good. Just the connectors that send the power into the engine bay are dead from the either side of the fire wall. Like I said earlier the connector for the front parking lights sends power but the other one for the headlights are dead. Where do they come from? the wiring diagram show they come from the high beam switch and the fuse box. Also I have tested the plug on the high beam switch and I get no power either. I thank you guys for what ever help I can get

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858670
11/20/10 09:15 PM
11/20/10 09:15 PM
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RapidRobert Offline
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dimmer sw has 3 terminal. hot in then it's switched to either the high beam wire out or the low beam wire out. the Hot in is dead? This hot in wire is fed by & goes directly up the black bakelite pull apart connector on the HL switch.


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Re: 1973 Duster wirnig issues...Help [Re: RapidRobert] #858671
11/20/10 09:21 PM
11/20/10 09:21 PM
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Dallas, Oregon USA
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Yes it is. I dont get anything off it

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858672
11/20/10 09:39 PM
11/20/10 09:39 PM
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Lincoln Nebraska
RapidRobert Offline
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We're dead from the HL sw down to the dimmer sw. If you jump to each of the "out" wires at the dimmer sw & you have (bright/dim) headlights and if you jump fire to the 1 wire in the connector at the HL sw and you have lights then the HL sw (or possibly the female terminal in the connector) is bad


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Re: 1973 Duster wirnig issues...Help [Re: RapidRobert] #858673
11/20/10 09:41 PM
11/20/10 09:41 PM
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Dallas, Oregon USA
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I'll try that. Thanks again!

Re: 1973 Duster wirnig issues...Help [Re: firtdog] #858674
11/21/10 12:19 AM
11/21/10 12:19 AM
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Dallas, Oregon USA
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Do you guys know what the #1 fuse is for in my 73?

Re: 1973 Duster wirnig issues...Help [Re: RapidRobert] #858675
11/21/10 04:55 PM
11/21/10 04:55 PM
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Dallas, Oregon USA
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Got the head lights and tail lights working. Thanks for all your help. It turned out to be the autoparts store sold me a bad bright switch. But now I still cant get break lights or turn signals to work. What should I do to trouble shoot that?

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