mm28 Anti Lock Braking Systems ABS for Trucks, Tractors, and Buses C Version

3 Troubleshooting

Figure 3.8

TOOTH WHEEL

PNEUMATIC ELECTRIC

TOOTH WHEEL

TOOTH WHEEL SENSOR

SENSOR ECU

6x4 6x6

CHECK VALVE

1

2 3

ABS MODULATOR VALVES

ABS MODULATOR VALVES

SENSORS

CHECK VALVE

6x2 6x4

ATC VALVES

1

2 3

SENSOR

TOOTH WHEEL

TOOTH WHEEL

SENSOR

TOOTH WHEEL

1000426a

Figure 3.9

TOOTH WHEEL

TOOTH WHEEL

SENSOR

PNEUMATIC ELECTRIC

TOOTH WHEEL

SENSOR ECU

CHECK VALVE

6x2

SENSOR

1

3 2

ABS MODULATOR VALVES

ABS MODULATOR VALVES

ATC

CHECK VALVE

6x2

1

2 3

SENSOR

TOOTH WHEEL

SENSOR

SENSOR

TOOTH WHEEL

TOOTH WHEEL

1000427a

Figure 3.9

18 WABCO Maintenance Manual MM-28 (Revised 03.2020)