98 Overhead display add on?
Thread Starter
|
Posting Guru
Joined: Jan 2009
Posts: 1,955
Likes: 2
From: Wyoming
98 Overhead display add on?
I picked up an overhead readout piece (compass, temp, so on) a while back with the intentions on adding it onto my 98 Sport.... Question is, when I pulled the unit, the wiring runs down the pillar, to?
And is this a unit that can be added onto a vehicle that did not come equipped with it, without a lot of frustration? LOL
And is this a unit that can be added onto a vehicle that did not come equipped with it, without a lot of frustration? LOL
Logistics Pro
Joined: Jun 2009
Posts: 4,817
Likes: 83
From: Cedar Rapids, IA
The diagram if the 1997 is likely the same as for the 1998. I took a look at the wiring diagram for the 1997 though. The interior lights in the overhead console get power from the interior light circuit. The compass and temp display microprocessor get their signals from the interior fuse panel, the outside air temperature sensor, the "instrument illumination" circuit, and the PCM (Vehicle Speed Sensor input).
-Rod
-Rod
Logistics Pro
Joined: Jun 2009
Posts: 4,817
Likes: 83
From: Cedar Rapids, IA
The VSS signal should be in all recent models of Explorer. I'm not sure what year they stopped using cable-driven speedometers. It may be on a different pin to the PCM though.
I'm also not positive what the VSS line is used for. Maybe it's for hysteresis of the compass (so you don't get changing direction when the vehicle is not moving) or possibly used during the compass calibration process.
-Rod
I'm also not positive what the VSS line is used for. Maybe it's for hysteresis of the compass (so you don't get changing direction when the vehicle is not moving) or possibly used during the compass calibration process.
-Rod
Thread Starter
|
Posting Guru
Joined: Jan 2009
Posts: 1,955
Likes: 2
From: Wyoming
This is good to know... I have been wondering if all models in this era were pre-programmed at the factory to have this option available, but only installed on selected models!
The experience I have had with the VSS, is on older models, they are cable driven as well and do not use the VSS, while on about 94 and up, the VSS was used for the speedo and on some models, transmission operations. So I could see how it plays into other operations as well...
I am curious enough now, I may have to go strip down a known model at the JY, and see what I come up with as for connectors! LOL!
Thank you for all the help!
The experience I have had with the VSS, is on older models, they are cable driven as well and do not use the VSS, while on about 94 and up, the VSS was used for the speedo and on some models, transmission operations. So I could see how it plays into other operations as well...
I am curious enough now, I may have to go strip down a known model at the JY, and see what I come up with as for connectors! LOL!
Thank you for all the help!
Thread
Thread Starter
Forum
Replies
Last Post
kynnhoj
1968-Present E-Series Van/Cutaway/Chassis
2
Apr 29, 2014 03:15 PM
