Thanks for the reply @BaD_81Sound strange!
The ABS pump is controlled by the ASR computer (running by memory here) based on what the ABS/TCU/Gear selector are feeding.
In other words, ABS sensor being out sends a signal to ASR (lack of rpms/open circuit/etc.) the ASR calculates the input data and spits a command - close the holding solenoid on RR wheel (open/close is electrical, but the pressure is coming with the pump working and that involves the brake booster). Executing the command you have a certain feedback - pressure based I think (a bit questionable, however if no ABS sensor input = no speed being changed, no feedback...) and that unit with sufficient fluid level, no air in the system should stop!
So, if something was done on the brake lines recently, have you bled them?
Running over something that ripped a sensor cable?
But my best approach (SDS scan is the best approach) with no scan printout is checking each wheel ABS sensor for disconnected wire. Is there power supply or TCU. These for the ABS/ASR light, the rest is...a bit too difficult!
And a low battery throws all kinds of errors. Always a good starter for 10.Not being driven much, did you have a battery maintainer attached? Because low charge is pushing the electronics in the car beyond their comfort zone...sort-a-speech
I did not and that battery has gone low enough to need a charge at least once in thr last few months.Not being driven much, did you have a battery maintainer attached? Because low charge is pushing the electronics in the car beyond their comfort zone...sort-a-speech
The Module will not communicate if un plugged, so be sure to tell the guy with SDS that it is unplugged.Off to get the codes read this afternoon, but I am thinking it is likely a pump issue. For now I have pulled the power plug out of the unit to shut it off.
Just for the record, my indie friend had me connect power to the ABS pump when he performed the scan.The Module will not communicate if un plugged, so be sure to tell the guy with SDS that it is unplugged.
If he's not using SDS then you might just as well swap the unit anyways, and I'm not a gambler, but I would bet that it is the ABS / ESP Pump and Module unit