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Section 4

System Configurations MERITOR WABCO

2S/1M Trailer ABS Configuration Without External Diagnostics Capability Installation Diagram

Figure 4.1

For direct tank-mounted installations, see "How to Install the ECU/Valve Assembly," in Section 6, "Component Replacement".

Typical Application:

· Single-Axle Dolly

· Single- and Tandem-Axle Semi-Trailer

NOTE

Sensors may be installed on either axle, depending upon suspension and other vehicle characteristics.

System Configurations

2S/1M Trailer ABS Configuration with External Diagnostics Capability Installation Diagram

Figure 4.2

For direct tank-mounted installations, see "How to Install the ECU/VaIve Assembly" in Section 6, "Component Replacement".

Typical Application:

· Single-Axle Dolly

· Single- and Tandem-Axle Semi-Trailer

NOTE

Sensors may be installed on either axle, depending upon suspension and other vehicle characteristics.

TABLE OF CONTENTS

System Configurations

2S/2M Trailer ABS Configuration Installation Diagram

Figure 4.3

For direct tank-mounted installations, see "How to Install the ECU/VaIve Assembly" in Section 6, "Component Replacement".

Typical Application:

Single- and Tandem-Axle Semi-Trailer

NOTE

Sensors may be installed on either axle, depending upon suspension and other vehicle characteristics.

TABLE OF CONTENTS

System Configurations

4S/2M Trailer ABS Configuration Installation Diagram

Figure 4.4

For direct tank-mounted installations, see "How to Install the ECU/VaIve Assembly" in Section 6, "Component Replacement".

Typical Application:

Tandem and Tri-Axle Semi-Trailer

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System Configurations

4S/2M Trailer ABS Configuration Diagram for Lift Axle Applications (Forward Lift Axle Installation Diagram)

Figure 4.5

For direct tank-mounted installations, see "How to Install the ECU/VaIve Assembly" in Section 6, "Component Replacement".

Typical Application:

? Tandem and Tri-Axle Semi-Trailer

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System Configurations

4S/2M Trailer ABS Configuration Diagram for Lift Axle Applications (Rear Lift Axle Installation Diagram)

Figure 4.6

For direct tank-mounted installations, see "How to Install the ECU/VaIve Assembly" in Section 6, "Component Replacement".

Typical Application:

? Tandem and Tri-Axle Semi-Trailer

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System Configurations

4S/3M Trailer ABS Configuration Installation Diagram

Figure 4.7

Typical Application:

· Tandem with Lift Axle

· Tri-Axle Semi-Trailer

· Semi-Trailer with Lift Axle

· Full Trailer (Drawbar Trailers)

NOTE

Sensors may be installed on either axle, depending upon suspension and other vehicle characteristics.

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System Configurations

Power Cable Wiring Diagrams

Figure 4.8

Figure 4.9

TABLE OF CONTENTS

System Configurations

Power Cable Wiring Diagrams

Figure 4.10

Figure 4.11

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