Update. I completely unpluged the VSS and my car wont even throw the code for it.... its a 99 ls.

Yo tr. my speed sensor was working yesterday and i replace an ac hose near it and i unplugged the speed sensor to get to it. hot water poured onto and it stopped working. i went and got another speed sensor and replace it and my speedo still doesnt work. Anyone know y? Please help me out. thanx.

If u want to text me my number is 305-305-2968. rather text its faster but either way to reach me is cool

thanx ahead. will rep for help. thanx

 

no 1 knows?

 

Did you try cleaning the plug??

I thought there was a fuse that had something to do with the speed sensor..

 

i took a wire brush type thing and tried cleanin it like that. I even unpplugged the sensor and my engine light has not come on. How long will it take before it throws a code? My car didnt throw the code before also.

 

fuse was also good. fuse is tied with the alternator and alternator is perfect also.

 

anyone??

 

It usually takes a few miles or a certain speed. Mine didnt come on for about 3 mins once i hit like 60 and my speedo was dead the whole time.

 

i drove for about 30 min yesterday and it still hasnt come on. I mean its unplugged...

 

How the Circuit Works
With the ignition switch in ON (II) or START (III), battery voltage is supplied through fuse 15 and the BLK/YEL wire to the vehicle speed sensor (VSS). The sensor is grounded by the BLK wire to G101 The speedometer and other control units in the circuit supply about 5 volts to the ORN wire. The vehicle speed sensor (VSS) intermittently grounds the ORN wire which generates a pulsed signal in it. The number of pulses per minute increases/decreases with the speed of the car. Assuming you replaced with a new vss, test the gauge. Ground the ORN wire with key on engine off.