Speed Sensor

[JDNav]

What wire is the speed sensor wire? I'm hooking up navigation and need to tap into this wire. Any help?

[JDNav]

Help!!! Please

[mailmars]

Originally Posted by JDNav

Help!!! Please

Wish I could.. I will try and look it up or maybe WOP can jump in but I believe that it would be like most of the other sensor signals. The analog signal is pretty much worthless and signal from the PCM is PWM. Most navigators use GPS to track speed...


Mark

[JDNav]

It does use GPS but this is just kind of a backup measure. Someone told me there are two wires coming off the speed sensor located on the transaxle, one for low signal and one for high signal. I don't kunderstand the difference between them.

[Twincharged]

Chances are the VSS is going to be a frequency signal which will have to be programmed into the whatever need to read the signal. Your dash gets the signal thru a buss. The buss is like cable TV many signals thru 1 wire.

[WopOnTour]

Well like Twincharged states it's debatable if your nav system will be compatible with vehicle speed sensor signal, but...

The sensor is a Varibale Reluctance (VR) type.It is mounted on the RH intermediate axle shaft on the 2004 and 2005 LSJ models but is internal to the F35 transaxle in 2006. It has 2 wires and the sensor produces an AC voltage signal, the frequency of which increases with vehicle speed.(technically amplitude as well, but the voltage level is not the primary input to the PCM)

The VSS connects to PCM connector C3 (grey) pins 44 (purple) and 45 (yellow)

What system are you attempting to patch in??
Regards
WopOnTour