Any such thing as availabilty of electrical wiring 'blueprints'?

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Old 03-18-09, 04:32 PM
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Any such thing as availabilty of electrical wiring 'blueprints'?

I stopped at the Dodge garage today - and they are not sure. I told them you would think there would be such a thing to cut down immensely on trying to trace down wires off a schematic, when you are still uncertain where the wires actually all go.

I told them how easy it be, to have line drawings that are drawn over the chasis, to show the actual routing. Every component could be done that way. If transparancies were used, you could see how they overlap or share the same harness in areas, etc. This would be very easy to do, and am shocked if no such thing exists.

But you would think it have to exist, for the car company to make the car!

If there is no such thing, it may be worth me notifying the gov't telling them of this, and how this is costing people needlessly probably millions of dollars in needless diagnostic time, on trying to trace down bad wiring.

I stopped at Advance also today and the kid there suggested I get on the library's computer for free, to log into AllData, as he said they have lots of stuff. Have not tried that yet.

My cars headlights, and license plates do not work. The other lights do. You would think it would not be a ground, if other nearby lights work. The fuses are good. Blower motor also does not work. Maybe more stuff does not work. I have not had the chance yet to try everything. I have not tried the wipers or radio yet.

I have not had the chance yet to question the elderly ex-owner about all this. I was shocked he neglected to tell me this stuff! Maybe he did not know. And maybe mice did something over the fall and winter (srue hope not!). But I am going to try to catch him home and ask him, as I can see someone has tinkered with the wires by installing additional wires/jacks - maybe for towing boat and maybe auxilary power when out at a camp or something.
 
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Old 03-18-09, 05:16 PM
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1. Buyer beware.
2. Apply for stimulus money for employing people to draw wiring diagrams.
3. Expand stimulus to draw wiring diagrams for houses.
4. With all the problems listed or implied, did you buy this sight unseen?
5. How old and how many owners prior to you?
 
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Old 03-18-09, 05:38 PM
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Yes, Its definitely a governmental conspiracy brought on by the big three auto makers and A.I.G.
 
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Old 03-18-09, 05:55 PM
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Originally Posted by goldstar View Post
1. Buyer beware.
In retrospect, uh, ya, you got that right.

2. Apply for stimulus money for employing people to draw wiring diagrams.
Where can I sign up?

3. Expand stimulus to draw wiring diagrams for houses.
I can always find problems in houses. Wires, even though likewise 'hidden', can usually be found once the problem circuit is identified. Where the wires actually go is not as problematic as in a car. Houses do not bundle up 15 wires and run them together for 3 feet somewheres, and then fork off 6 wires, here, 3 more of the wires under there, over to some relay here, up and over into this compartment over there, through a firewall, around car frames, etc.

4. With all the problems listed or implied, did you buy this sight unseen?
He did refrigeration work for us years ago. And I was told this used to be his wife's car, for 15 years, until she died. I made a lot of presumptions I normally would not have.

5. How old and how many owners prior to you?
Well, the last party had it supposedly for about 15 years, as mentioned.
 
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Old 03-18-09, 07:13 PM
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The factory service manuals should have all this. My Nissan's manual has color coded diagrams, pin connectors, etc.

If you know where the wire ends and where it begins, it's easy to test the wire for continuity with a multimeter.
 
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Old 03-18-09, 07:32 PM
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Year make and Model?????

As mentioned, The FACTORY manuals will have Connector locations and pictures--(Actually Drawings) of almost all relevant components.

If his wife had it for 15 years, I would guess this is along the Scheme of a Early to Mid nineties P or J body Chrysler Product?

With the common problems..... Blower and lighting????

Blower resistor, and a Headlight switch......were, (And still are) both common Problem areas.
 
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Old 03-19-09, 07:20 AM
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Originally Posted by HotinOKC View Post
If you know where the wire ends and where it begins, it's easy to test the wire...

And that is the crux of the matter. How orften can you ever see where wire sections end and begin? And where they even run the wire?
 
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Old 03-19-09, 07:27 AM
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Originally Posted by Unclediezel View Post
Year make and Model?????
1990 Dodge Spirit with the plain 2.5 liter 4-cylinder.

As mentioned, The FACTORY manuals will have Connector locations and pictures--(Actually Drawings) of almost all relevant components.
Why didn't the Dodge garage guys tell me that?! They gave no hint that you actually can see where actual stuff is located.

If his wife had it for 15 years, I would guess this is along the Scheme of a Early to Mid nineties P or J body Chrysler Product?
I wonder if his wife had that big toe-ball put on the car and got all those pine needles down in the car. ??

With the common problems..... Blower and lighting????

Blower resistor, and a Headlight switch......were, (And still are) both common Problem areas.
Blower: No high speed either. I thought the high speed on blowers bypasses any resistor.

Headlights: The switch? That be great, if that is the common problem! Are the fuses usually before or after the switch? I have not tested at the fuses yet. Only saw that each fuse is not burned.
 
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Old 03-19-09, 03:43 PM
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Originally Posted by ecman51` View Post
Blower: No high speed either. I thought the high speed on blowers bypasses any resistor.

Headlights: The switch? That be great, if that is the common problem! Are the fuses usually before or after the switch? I have not tested at the fuses yet. Only saw that each fuse is not burned.
Yes and no....Hi does bypass the "Resistor Coils", but it still feeds in and out of the resistor block. There is a Thermal fuse in line with all speeds.

The headlights will be on a Fusible link , which I believe feeds the "Dimmer" , then the switch, then sent out to the lamps.The Parking lights are fused before the switch. The Plate lamps I-I-R-C....are part of the trunk lid, so check the harness for damage at the trunk hinge on the drivers side.
 
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Old 03-19-09, 03:50 PM
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My mechanic called and said the car is ready. I think he said $184 (tops). Not bad for new rotors, one new caliper, front pads, and fixing the rattley heat shield over the exhaust. Heck with doing the work yourself if you can find somebody like this.

I will test the power at the left and right headlight fuses, and then ask more questions here if need be. I will also see what I can in and around the blower to check for the wires, a resistor, etc.
 
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Old 03-21-09, 12:51 PM
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Lucked out and fixed headlight problem!

I checked my 2 fuses and neither had power into them.

Consulted my Mitchell's wiring diagram I had from my old '91. After thumbing through the pages I photocopied a few years ago, I discovered fuse voltage supplied is first supplied by the hi-lo beam/windshield wiper steering column lever control (THEN power goes to the fuses). I had a neighbor look while I wiggled it. And when I held it way inward, the lights came on! But they would not stay on hi or lo by themselves by clicking the lever. Also the windshield wiper started running, like it was haunted.

I read on how to remove the steering column cover (easy). Removed it and the tilt steering column lever (unscrews). And to my joy, the entire lever assembly is held in by only 2 torx screws. And I removed those, and unscrewed the wiring harness (held in by a bolt). Removed the lever switch. Went down to the garage where my old '91 was and removed it's column lever switch. Swapped them out.

Hurray. The whole thing, dealing with both cars took about 1/2 hour. That's it. Gleefully told both my neighbors who like keeping track of my escapades. My one neighbor once again asked me if wished I coud buy a car like I have, brand new. Yes! I bet most cars would not be this easy to access and remove/replace such a part. It is like the whole car was made for the DIY'er.

.................................

Next project: Blower motor (on all speeds)outage. I began studying the wiring diagram for it and the resistor. 30 amp fuse has power through it.
 
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