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MERITOR WABCO
Enhanced Easy-StopTM
Trailer ABS with PLC_________________________
Maintenance Manual MM-0180
Issued 05-01
- 2S/1M Basic
- 2S/2M Standard
- 2S/2M, 4S/2M, 4S/3M Premium
Table of Contents
Service Notes
!
Asbestos and Non-Asbestos Fibers Warnings
Section 1 Introduction
Maintenance
Manual Information
Identifying
Enhanced Easy-Stop Trailer ABS
Enhanced
Easy-Stop Trailer Parts
What
is Meritor WABCO's Enhanced Easy Stop Trailer ABS?
System
Configuration
How
Trailer ABS Works
Section 2 System Components
System Components
Section 3 ABS Questions and Answers
The Electronic Control Unit (ECU)
Power Line Carrier (PLC) Communitcations Questions and
Answers
ABS Indicator Lamps
ABS Indicator Lamp (on Dash)
ABS Indicator Lamp (on Trailer)
Types of Faults
Section 4 System Configurations
Enhanced Easy-Stop Installation Diagrams
Power Cable Wiring Diagrams
Section 5 Diagnostics
Diagnostics
Important PLC Information for Blink Code Diagnostics
TOOLBOX Software
Blink Code Diagnostics
Diagnostic Tool (Blink Code Check)
Section 6
Wheel Speed Sensor
How to Remove a Sensor
How to Install a Sensor
ABS Relay Valve
How to Remove a Standard ABS Relay Valve
How to Install a Standard ABS Relay Valve
The ECU/Valve Assembly
How to Remove the ECU/Valve Assembly
How to Install the ECU/Valve Assembly
Tank-Mounted
Bracket-Mounted to Cross Member of Vehicle (2S/1M
Basic)
Mounted to Cross Member of Vehicle - Standard and
Premium
Mounting
Bracket
Not Supplied
Replacing the ECU or Modulator Valve
Section 7 Sensor Adjustment & Component Testing
How to Test Wheel Speed Sensors
Sensor Test Procedure
Sensor Output Voltage Test
Check ABS Functions
ABS External Modular Valve
End of Line Testing
End of Line Testing Procedure Using TOOLBOX Software
(All
Installations)
End of Line Testing without TOOLBOX Software
2S/1M Basic
Inspect the Sensor and Air Line Installation (2S/2M
Standard)
Inspect the Sensor and Air Line Installation (2S/2M,
4S/2M,
and 4S/3M Premium)
Perform End of Line Test (Standard and Premium
Installations)
Fault Code Check (All Installations)
Appendix I
Trailer ABS Indicator Lamp on Vehicle Dash