FEOA Forums banner
1 - 7 of 7 Posts

·
Registered
Joined
·
60 Posts
Discussion Starter · #1 ·
I bought some procarparts gauges, and I was wondering how to wire them. With my last vehicle, I wired them into the cig lighter light, which only came on with the parking/headlights. Where is an easy place in the 98 escort lx to splice the wires into?
 

·
Registered
Joined
·
2,709 Posts
Um... way too little information. If you want an ignition on B+, then the "correct" place to go is to the fuse box in the engine bay.
 

·
Registered
Joined
·
60 Posts
Discussion Starter · #3 ·
siragan said:
Um... way too little information. If you want an ignition on B+, then the "correct" place to go is to the fuse box in the engine bay.
I'm not quite sure what you were getting at with that, but all I want, is for the gauge lights to come on with the parking lights. The type of gauges I'm getting is just positive, and ground. I think I can splice the positive wire into my dimmer switch, I just want to make sure.
 

·
Registered
Joined
·
2,709 Posts
Yeah... the way dimmer switches work in cars is that they have THREE leads going into them. The leads are as follows:

1. 12V ignition - in
2. 12V ignition - in
3. Ground - out

What happens is this: one of the 12V ignition wires goes in and ALWAYS stays 12V. The other 12V in is connected to a rheostat which is grounded via the ground wire. When you adjust the rheostat, the voltage of the second 12V in drops, creating a fluctuating potential difference between the 12V constant and the 12V connected to the rheostat. Capiche?

You can build your own one if you want, it's very simple once you understand how it works. All of this information is in the wiring diagrams in the back of the haynes's manuals.
 

·
Registered
Joined
·
60 Posts
Discussion Starter · #6 ·
siragan said:
Yeah... the way dimmer switches work in cars is that they have THREE leads going into them. The leads are as follows:

1. 12V ignition - in
2. 12V ignition - in
3. Ground - out

What happens is this: one of the 12V ignition wires goes in and ALWAYS stays 12V. The other 12V in is connected to a rheostat which is grounded via the ground wire. When you adjust the rheostat, the voltage of the second 12V in drops, creating a fluctuating potential difference between the 12V constant and the 12V connected to the rheostat. Capiche?

You can build your own one if you want, it's very simple once you understand how it works. All of this information is in the wiring diagrams in the back of the haynes's manuals.
Ok, I guess my question is, is there somewhere that can be explained to me that I can wire my gauges so that they come on with my parking lights?
 

·
Registered
Joined
·
15,390 Posts
The wiring is explained in the service manual EVTM. The light dimmer circuit has it's own ground wire in my 1995LX.
 
1 - 7 of 7 Posts
Top