ABS W/EBD, BA, TRAC & VSC Systems

VSC (W/ Traction Control)

A8, A9 ABS SPEED SENSOR FRONT LH, RH
1 - 2 : 1.5 - 1.7 kOhm (20 °C, 68 °F)

A29, A30 ABS SPEED SENSOR REAR LH, RH
1 - 2 : 1.5 - 1.7 kOhm (20 °C, 68 °F)

20 ABS & BA & TRAC & VSC ECU
51 - GROUND : Always approx. 12 volts
48 - GROUND : Approx. 12 volts with the stop light SW on
28, 29 - GROUND : Always continuity

S4 STOP LIGHT SW
2 - 1 : Closed with brake pedal depressed