99 suburban k1500 6 lug drums

[alvaroemg]

Mine don’t do this. Also, I don’t have any brake issues or pedal height/squishy feeling. Where did you hear abs activating on any “L” turn is normal?

I read it somewhere on google when I searched for the issue and also a friend mechanic.

By your comment i guess it’s not normal. I’ll record a video later

 

[Schurkey]

Potential weak signal from one or more wheel speed sensors. At low speed, one or more of the sensors quits providing an adequate signal, and then the ABS rightfully believes that wheel is skidding. ABS activates, blocks pressure to whichever wheel is "skidding", and likely relieves pressure on that wheel, also.

IF this is a vehicle speed sensor that also provides signal to the ABS, you'd lose both rear wheel brakes since it's a 3-channel system.

 

[Caman96]

I read it somewhere on google when I searched for the issue and also a friend mechanic.

By your comment i guess it’s not normal. I’ll record a video later

Yeah think about it, imagine buying your truck new and it doing that?

 

[alvaroemg]

Yeah think about it, imagine buying your truck new and it doing that?

You have a point. All my other vehicles have never done that.

My friend had said that it had to do something with abs

 

[alvaroemg]

Potential weak signal from one or more wheel speed sensors. At low speed, one or more of the sensors quits providing an adequate signal, and then the ABS rightfully believes that wheel is skidding. ABS activates, blocks pressure to whichever wheel is "skidding", and likely relieves pressure on that wheel, also.

IF this is a vehicle speed sensor that also provides signal to the ABS, you'd lose both rear wheel brakes since it's a 3-channel system.

I replaced both speed sensors about 1 yr ago with some generic speed sensors, since I had the abs light. When turning all the way to either side sometimes the abs light comes on

 

[alvaroemg]

Potential weak signal from one or more wheel speed sensors. At low speed, one or more of the sensors quits providing an adequate signal, and then the ABS rightfully believes that wheel is skidding. ABS activates, blocks pressure to whichever wheel is "skidding", and likely relieves pressure on that wheel, also.

IF this is a vehicle speed sensor that also provides signal to the ABS, you'd lose both rear wheel brakes since it's a 3-channel system.

You are right on the money. Just got my obd2 scanner , purchased dash command and sure enough, after reading current codes it had a left wheel speed sensor fault.

Will monitor it for now, i do have a new moog wheel hub that comes with the speed sensor. Maybe that will be a project for when i get back from my 10 day work week. Will keep this thread updated soon enough

 

[Schurkey]

God bless the scan tool. MAJOR headache resolver.

 

[alvaroemg]

God bless the scan tool. MAJOR headache resolver.

As I pulled into my driveway i applied my brakes into my turn and there is was, pulsating and not stopping.

This is the code that followed