S2000 Electronics Information and discussion related to S2000 electronics such as ICE, GPS, and alarms.

Which is ground, which is power?

Old Aug 13, 2004 | 06:49 PM
  #1  
CyrusA's Avatar
Thread Starter
Registered User
 
Joined: Sep 2003
Posts: 654
Likes: 0
Default Which is ground, which is power?

Im hardwiring my escort passport with a telephone wire and i opened up the power thing for the cigarette light and found i need to use the green and yellow wires for power and ground, but i am clueless as to which is ground and which is power. Can anyone help me out?
Reply
Old Aug 13, 2004 | 07:56 PM
  #2  
InsaneInNC's Avatar
20 Year Member
 
Joined: May 2003
Posts: 497
Likes: 0
From: Cary
Default

Originally Posted by CyrusA,Aug 13 2004, 09:49 PM
Im hardwiring my escort passport with a telephone wire and i opened up the power thing for the cigarette light and found i need to use the green and yellow wires for power and ground, but i am clueless as to which is ground and which is power. Can anyone help me out?
If I were you, I would get a voltmeter and test each lead, using a black wire or metal bracket (one directly connected to the chasis) as a baseline. Yellow usually is the non-switched power. I don't know if the green is ground, or a switched power. Good luck
Reply
Old Aug 13, 2004 | 07:59 PM
  #3  
CyrusA's Avatar
Thread Starter
Registered User
 
Joined: Sep 2003
Posts: 654
Likes: 0
Default

i have a voltmeter, but i dont know how to test the wires. If you could gimme some instructions that would be great. Thanks
Reply
Old Aug 13, 2004 | 07:59 PM
  #4  
steven975's Avatar
Registered User
 
Joined: May 2004
Posts: 5,094
Likes: 6
From: Vienna, VA
Default

the wire connected to the center should be the +; the wire connected to the side of the socket should be -.
Reply
Old Aug 13, 2004 | 08:23 PM
  #5  
InsaneInNC's Avatar
20 Year Member
 
Joined: May 2003
Posts: 497
Likes: 0
From: Cary
Default

Originally Posted by CyrusA,Aug 13 2004, 09:49 PM
Im hardwiring my escort passport with a telephone wire and i opened up the power thing for the cigarette light and found i need to use the green and yellow wires for power and ground, but i am clueless as to which is ground and which is power. Can anyone help me out?
When you say you see green and yellow wires, where exactly are you seeing them? According to the 2000-2003 Service Manual, the accessory power connector (the thing that looks like a cigarette lighter) should have a white/red wire (switched power) and a black wire (ground). I would be leary if I saw anything else there.

As far as testing, if you take the black lead of your voltmeter and touch it to any metal part of the car chassis it will be grounded. Take the red lead, and touch it to one or the other wire to test the voltage of that wire. If it is powered, you will see ~12VDC; if it is ground, you should see 0VDC. If neither show a voltage, then either a) your accessory power is not turned on, b) neither wire is powered, or c) your ground lead is not grounded properly.

Good luck.

Mike
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jsenclosure
S2000 Racing and Competition
1
Oct 19, 2017 10:07 AM
fangtastic
S2000 Electronics
0
Jun 27, 2014 06:13 PM
Corey Maurer
Want to Buy
0
Feb 12, 2013 08:12 AM
nnguyen90
S2000 Electronics
8
Oct 5, 2010 12:20 PM
Blue_AP2
S2000 Electronics
5
Jan 11, 2010 08:08 AM



All times are GMT -8. The time now is 12:50 AM.