Does the ABS system use the VSS?

[Xploitn]

Does the ABS system use the VSS? Conversely, would a malfunctioning/broken VSS keep the ABS from working?

My VSS doesn't work and neither does my ABS so I was curious if they are related. The car isn't driven on the road so having a working speedometer isn't a problem but I want my ABS.

Thanks for any help!

I'm 90% sure the answer is no, but what tells the ABS controller that the vehicle is stopped?

Sensors tell a computer when a wheel stops rotating, which indicates—at least when the vehicle still has forward speed—that the brakes have overpowered the available traction at that particular wheel. The computer then directs a hydraulic valve to release some brake fluid pressure to the wheel to let it rotate again. This process repeats many times per second until the vehicle stops or you lift your foot off the brake pedal.

I hope there is no rule against answering your own question.

Based on wiring diagrams in chapter 3-51 of the Technical Information Manual for 2g AWD DSMs the ABS controller gets input from a G-sensor to detect the longitudinal acceleration/deceleration. if the wheels are not rotating and there is a reading of zero deceleration, then the ABS knows the vehicle is stopped. Makes sense.

 

[sleepertalon]

Yeah your vss has nothing to do with ## abs

 

[BlackKnight2013]

the vss is only an input for the abs. this input will determines the threshold of where the abs will and will not activate. above 10 or 15 mph the abs will work anything below that and abs will not activate. The only time abs will be affected is when a wheel speed sensor is faulty and turns on the abs light as well as internal faults with the abs module and wiring issues. overall, any time the abs light is on, as well as the brake light and or both, abs will be deactivated and won't activate in the event of sudden hard braking.

 

[luv2rallye]

http://www.dsmtuners.com/forums/art...-reading-2g-abs-diagnostic-trouble-codes.html.