Service Hints

A5, A6 ABS SPEED SENSOR FRONT LH, RH
1 - 2 : 1.4 - 1.8 kohm (20 °C, 68 °F)

A12, A13 ABS SPEED SENSOR REAR LH, RH
1 - 2 : 1.04 - 1.3 kohm (20 °C, 88 °F)

A4 ABS ACTUATOR WITH ECU
3 - GROUND : Approx. 12 volts with the ignition SW at ON position
16 - GROUND : Approx. 12 volts with the stop light SW on (Brake pedal depressed)
1, 23 - GROUND : Always continuity
2, 24 - GROUND : Always approx. 12 volts

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