leon phelps
Valued Contributor
Posts: 3019
Loc: Croydon Manor, PA
Reg: 06-04-05
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06-10-12 06:13 PM - Post#2235573
Hello,
Still pouring over the wiring for my car. basically, putting a new generation engine in an older car.
matching the wiring is some fun. Have most things working (wipers, headlights, brake lights, interior lights).
I see on the voltage regulator that the brown wire (or #4) goes to the ammeter. I have been told that I cant use that gauge. I see further down the electrical diagram that this eventually joins to several other things in the back of the dash. Is it safe to say thus connection is a key on positive wire?
I still have no reverse lights or horn. I have a harness ordered for the turn signals and horn, so this may be unrelated.
I also have rear daytime running lights. I dont really care since I will put LED's in next and they are supposed to last forever. One side does appear to be brighter than the other. The brake lights work, so this confuses me also.
thanks for any info about this #4 terminal wire.
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EIRE
Contributor
Posts: 172
Reg: 10-11-07
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06-12-12 07:35 AM - Post#2236157
In response to leon phelps
What year? I thought the ammeter was fed from a black wire going to the horn relay.
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leon phelps
Valued Contributor
Posts: 3019
Loc: Croydon Manor, PA
Reg: 06-04-05
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06-12-12 09:06 AM - Post#2236190
In response to EIRE
65
I am using the diagram from in the sticky section.
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 427SS65
"9th Year" Platinum Supporting Member & Moderator
Posts: 12271
Age: 67
Loc: St. Louis, MO
Reg: 12-11-03
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06-12-12 11:36 AM - Post#2236230
In response to leon phelps
To end all confusion, I have added a new Simplified Ammeter Wiring diagram in the Reference Materials - Electrical area. Mind you, it only applies to the stock configuration!
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leon phelps
Valued Contributor
Posts: 3019
Loc: Croydon Manor, PA
Reg: 06-04-05
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06-12-12 12:18 PM - Post#2236247
In response to 427SS65
Tom,
Not to add to the madness, but in your diagram for the headlights with the relay, all of the aftermarket relays that I have used are done with pin 87 and not 87a. I thought 87a was for circuits that are always on then switched off with power?
Ill check out your info.
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427SS65
"9th Year" Platinum Supporting Member & Moderator
Posts: 12271
Age: 67
Loc: St. Louis, MO
Reg: 12-11-03
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06-12-12 02:08 PM - Post#2236298
In response to leon phelps
Thanks for catching that. I just looked at a relay I have in my desk - bingo. 87 not 87a. When you reopen that document, hit your browser's refresh, so you get the current version!
Congrats, you get free shipping on your order!
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leon phelps
Valued Contributor
Posts: 3019
Loc: Croydon Manor, PA
Reg: 06-04-05
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06-12-12 02:19 PM - Post#2236306
In response to 427SS65
funny. I have trouble seeing those numbers on the terminals too.
I still wish I found an easy fix to reverse lights and horn.
waiting for the exhaust to be done, then hopefully the turn signal harness is here.
considering I had to install relays for the top motor, cooling fans and one for the whole car...I am sure I did that one correct. 
Edited by leon phelps on 06-12-12 02:20 PM. Reason for edit: No reason given.
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427SS65
"9th Year" Platinum Supporting Member & Moderator
Posts: 12271
Age: 67
Loc: St. Louis, MO
Reg: 12-11-03
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06-12-12 02:36 PM - Post#2236311
In response to leon phelps
I just added an enhanced photo of the relay bottom to the drawing...
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65_Impala
Very Senior Member
Posts: 1593
Reg: 12-29-02
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06-12-12 04:16 PM - Post#2236352
In response to leon phelps
I don't think the question of the brown wire was answered. The Alt idiot light gets power from a switched ignition source. There is also a resistor wire connected in parallel to the alt idiot light. Then, both are connected to the brown wire and run to the regulator at terminal 4. In other words, the brown wire goes into the dash and connects to 1 wire of the light socket and 1 end of a resistor. The other wire of the light socket and the other end of the resitor go to a switched ignition source. You just don't have the light if not equipped. Grounding the brown wire should make the light come on.
You likely have a CS130 alternator. If so, I believe you wire the brown wire to the L terminal. S is the remote voltage sensing terminal. The alternator attempts to regulate the voltage at the point where it's connected. It can be left unconnected to make the wiring simpler and neat and that works OK if you have decent wiring in the car. It better to wire to the main distribution block. On a stock 65, this is the horn relay. On your car, it would be where you are powering all the new accessories and relays. This will compensate for the voltage drops in the wiring from the alternator to this block.
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65_Impala
Very Senior Member
Posts: 1593
Reg: 12-29-02
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06-12-12 04:19 PM - Post#2236355
In response to leon phelps
I have seen relays where 87 and 87A were simply connected together. The relay had a N/O contact only.
87 is the standard N/O terminal and 87a is the standard N/C terminal though.
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