basic color codes

Thread Starter

iamftds

Joined Feb 9, 2014
1
I am searching for basic color coding in a automotive setting I have a white wire with a blue stripe and a black wire with a blue stripe which one should be considered positive
 

MaxHeadRoom

Joined Jul 18, 2013
23,915
I have a few GM Factory Workshop Manuals and they show standards used, but wire colour codes are not shown.
It is best to try and get a OEM workshop manual if possible.
Max.
 

DerStrom8

Joined Feb 20, 2011
2,390
I am searching for basic color coding in a automotive setting I have a white wire with a blue stripe and a black wire with a blue stripe which one should be considered positive
Those don't really sound like positive and negative wires to me. They sound more like signal/low power/current wires of some sort, perhaps for a car radio?

By the way, automotive discussions are not allowed here, so depending on how the moderators read this thread, be prepared for it to be closed. It's a safety and liability thing, it's not personal.

Regards,
Matt
 

#12

Joined Nov 30, 2010
18,223
I used to know the codes for Fords, but they keep changing. Buy the wiring manual. About $35 on eBay. It's worth at least triple that for the time it will save you.

One of my friends spent 4 trips and over a thousand dollars trying to get Goodyear Service to fix a dead battery problem. They failed four times. I made him buy the manual and had it fixed for free in 35 minutes.

But don't come back here for diagnosis. Try electrotechonline. Plenty of smart people, different rules.
 
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Art

Joined Sep 10, 2007
806
Having worked in an auto factory, I can verify that red is positive, black is negative,
the rest is up to the manufacturer :D
If the chassis is ground, should one of them not be common to the chassis?
 

alfacliff

Joined Dec 13, 2013
2,458
in a car, everything not grounded is positive. no positive ground cars for a long time.
my 74 Alfa Romeo and my sons 69 Alfa Romeo have actual color coded wireing, except when they run out of a particular color and put in whatever they have on hand.
 
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