Yes, I cleaned them and it seemed to help. Im going to buy 2 new ACD and replace them soon and see if that helps.

 

Odd thing happened a couple times now... Dry pavement, driving about 20mph or less and coming to a stop in a parking lot... The brakes feel funny and odd noise like they are trying to grind or something and the ESC ACTIVE light shows up on the info center????? Does this still have something to do with the VVT sensors as I haven't changed them yet but did clean them awhile back... other than that the SERVICE ESC hasn't popped up since.... hmmm

 

That grinding noise is ABS. For some reason the EBCM thinks that one wheel is spinning at a different rate than the others. Or thinks that the car is out of the meat bag's control.

ESC is a function of the ABS system, inputs are from the wheel speed sensors the steering angle sensor and the yaw sensor. The ESC is activated when the steering wheel and the yaw sensor don't agree, it applies brakes at a higher frequency and different wheels than ABS; it is attempting to make the car go straight.

Reasons:
somebody has tried to straighten the steering wheel by removing it and re centering it, rather that equalizing the toe
a bad yaw sensor/connection
a bad steering angle sensor/connection
maybe a bad wheel speed sensor (not sure)
a bad ECBM/wires
one wheel brake binding more than the others.

The steering angle sensor can be calibrated with a tech2 type computer.

 

I noticed when I pulled the wheels to check those connectors/wiring that the hubs are new on both sides BUT one is clean steel and the other has blue on the lug threads so I think its 2 different brand of hubs, would that be a possible cause (maybe teeth patterns are different?)

 

doubt it.

 

X2 not likely.

 

Ok, awhile back I mentioned that driving slow in a parking lot and it all the sudden feels like the ABS is kicking in ( like 2mph or less...odd ) then nothing.

Today, first start, backing out of the driveway and it kicked in? ABS and traction light both came on with the dreaded dinging, also displaying Service ESC and Service traction... turn car off and back on just the ABS light is on. Driving and they both alternate on and off but mainly on. Got back home after a 30 mile drive, went to leave again and they came back,,,, while driving a short distance about 10 miles they went off on their own. Then back on after leaving the store?
Ill run my reader when Im done running today but wondering why all the sudden this BS starts? I ordered new VVT solenoids that will be in Wednesday but not sure if that's the cause of the ABS doing its screwed up crap??? Anything to look for?

 

Then I'd pull the wheels and look for debris in the sensor area. Blow some compressed air with some brake cleaner. (wear a mask)
Road test. Look for the simple stuff first!?

 

Hook up that code reader, see if any pending codes, if not a battery lobotomy, and wait for those new VVT solenoids.
you can also check the wires for rodent gnawing damage.

 

Does the code reader do ABS? If it does you can get readings only when the ABS light is lit. It can basically only tell if one of the wheel speed sensors is mucked and which one.

Could be the connectors on the EBCM or any of the wires. Is the steering wheel mounted right? (seems like I've asked before). Could be a bad EBCM or steering position sensor or yaw sensor or wheel speed sensor or Lateral acceleration sensor. (or wiring/connection to any one).

Mine started doing that after I screwed the front end up on a curb then had it aligned by a guy that didn't unbend the parts, just adjusted the toe to make it straight. I also had a side curtain deployment from running up an embankment with no damage shortly before. I blamed either the steering sensor or the yaw sensor, possibly a WSS; got sick before I fixed it.

The ABS and traction control also mess with the engine parameters when activated. For instance, when 1 wheel slips the engine reduces torque and the appropriate brake is applied.

Anti-lock does pulsations. ESC applies the brakes in an attempt to steer the car into (or out of) a skid and avoid turn over. Traction control attempts stop a wheel from slipping