1G ABS spontaneously trigger at low speed

[IvanJashin89]

Hi. ABS triggers at low speed when the brake is pressed. Is there any way to read ABS on G1? I tried it with a diode tester, it`s a constant PLUS "+". ABS sensors have been changed in circle, the gap is 0.3-0.5 everywhere, the rotors (targets) are cleaned of traces of corrosion. This began after the replacement of the rear calipers, discs with pads around and a complete replacement of brake fluid. The most interesting thing that was noticed is that if you turn on the ignition and luift the car on the lift and rotate the rear wheels you can hear the sound of the ABS pump from under the hood.

 

[TerminalTalon]

These are notorious for ABS issues so be warned. Do the wheel bearings have any play? Is it a specific wheel that you rotate that causes the ABS to actuate or is it all of them?

 

[IvanJashin89]

Exclusively when the rear wheels rotate. And at the front there is silence and here is the question. Since I can’t read the ABS, I would like to figure out what the reason might be.

 

[TerminalTalon]

The rear wheel sensors go directly to the ABS control unit so it’s either the sensors, rings or module. I assume it’s in neutral?

 

[IvanJashin89]

The rear wheel sensors go directly to the ABS control unit so it’s either the sensors, rings or module. I assume it’s in neutral?

Yes, of 'course. It started just after the replacement of the rear calipers. At the same time, the wheels rotate without any difficulties

 

[TerminalTalon]

If everything is correct it points to the ABS module. It simply actuating after replacing calipers seems to point to something related to the install.