What are the functions of the vss wire? and what if it is not hooked up? on my d3?
Posted Mar 10, 2008 · 07:29 UTC#1
Vss wire question
Posted Mar 10, 2008 · 08:38 UTC#2
on mine, my nav wouldn't even work right! and it throws things off. in the owners manual says if you don't hook it up theres soething else you got to buy. its a pain in the ass to find that wire however luckily mine is on my radio harness and thanks to people here, i found which one it is!
Posted Mar 10, 2008 · 17:28 UTC#3
from what ive been able to gather... on the d3 the vss wire makes the gps more exact than just with the gps antenna itself, and it is supposed to keep the gps accurate when you are in a tunnel.
if you dont hook vss up then the gps will still work... just not in tunnels
Posted Mar 11, 2008 · 02:40 UTC#4
The D3 has 3 sensors to tell where you are and how fast you are going. GPS, VSS and a gyro sensr inside the unit. The gyro will learn it's thing as you drive all by itself, and the GPS is fairly automatic. If it uses just these two, it will work. But in order for it to be as accurate as it can be, the VSS needs to be connected. In some vehicles, there is no VSS wire that the D3 can read, because it is digital. In these few cases, the VSS can be left off. But if your car has one that is easy enough to connect, then do so and you will not be disappointed.
Posted Mar 20, 2008 · 06:49 UTC#5
In some vehicles, there is no VSS wire that the D3 can read, because it is digital.
Pretty sad information you're feeding these people. All vehicles have a VSS wire that transmits a Digital DC signal...
Whether it be a wheel speed sensor, cam/crank sensor, VSS on the trans it consists of:
A reluctor (toothed wheel)
Magnetic Pickup
Coil of wire
They're all digital...
As for ANALOG signals (TPS, MAP, MAF) most of them need to be converted to Digital DC so the PCM can understand the signal.
Posted Mar 23, 2008 · 01:39 UTC#6
In some vehicles, there is no VSS wire that the D3 can read, because it is digital.
Pretty sad information you're feeding these people. All vehicles have a VSS wire that transmits a Digital DC signal...
Whether it be a wheel speed sensor, cam/crank sensor, VSS on the trans it consists of:
A reluctor (toothed wheel)
Magnetic Pickup
Coil of wire
They're all digital...
As for ANALOG signals (TPS, MAP, MAF) most of them need to be converted to Digital DC so the PCM can understand the signal.
When he says "digital" he means they're DATA signals or the vss signal itself is pulsed outside the range the avic can handle (most newer chryslers).