Start at the ABS sensor and work your way , inspecting the wiring and any connectors , back to the ABS module .
Unplug the ABS sensor and check its resistance with an ohm meter . Compare with both a ” good ” one and a ” bad ” one .
The spot where those wires terminate at the ABS module . you should have pretty much the same resistance value ( with the wires not terminated at the ABS module ) .
Wyr
God bless
