Bendix Commercial Vehicle Systems GEN 5 ABS - Manual

1
®
SD-13-4746
GEN 4 ™ AND GEN 5 ™ ABS INTRODUCTION
This manual describes both the cab mount and the frame
mount versions of the Bendix
® Gen 4 ™ and Gen 5 ™ Antilock
Brake System/Automatic Traction Control (ABS/ATC)
systems.
Both cab and frame mount versions are designed for:
• Tractors
• Trucks
• Buses and
• Motor Coaches and
• RVs.
This manual covers:
• ABS/ATC Operation
• System Components
• Service Procedures
• Diagnosis and
• Troubleshooting Procedures.
For information on disassembly, installation, and service of
related axle and brake components, refer to their individual
Bendix Service Manuals.
For assistance in your area call Bendix at 1-800-247-2725
or RoadRanger
® at 1-800-826-4357.
These ABS controllers and systems were originally
marketed by Eaton Corporation under the Eaton
® brand
name. For more information contact Bendix, your local
authorized Bendix dealer, or RoadRanger
® .
Document Revision Level
This document is subject to revision.
For updates, please visit www.bendix.com.
Bendix ® Gen 4 ™ and Gen 5 ™ ABS for Trucks, Tractors, and Buses
FIGURE 1 - Bendix ® ABS Controller Assemblies
Cab-Mounted Models
Frame-Mounted Model
Table of Contents
ABS Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ABS Component Function . . . . . . . . . . . . . . . . . . . . . . 3
ABS Indicator Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ABS Trailer Indicator Lamp . . . . . . . . . . . . . . . . . . . . . 3
Automatic Traction Control (ATC) System . . . . . . . . . . 4
Component Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electronic Control Units (ECUs) . . . . . . . . . . . . . . . . . 7
ABS Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Modulator Valve Operation Modes . . . . . . . . . . . . . . . 10
Optional Front Axle Modules . . . . . . . . . . . . . . . . . . . 11
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . 13
System Configurations . . . . . . . . . . . . . . . . . . . . . . . 15
ServiceRanger PC Software . . . . . . . . . . . . . . . . . . . 16
Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Reading Configuration Codes . . . . . . . . . . . . . . . . . . 18
Retrieving Diagnostic Trouble Codes . . . . . . . . . . . . . 18
Clearing Diagnostic Trouble Codes and/or System
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Disabling ATC for Dyno Testing . . . . . . . . . . . . . . . . . 20
Speed Sensor Troubleshooting . . . . . . . . . . . . . . . . . 25
The 17•12 Sensor Memory Diagnostic Trouble Code
26
Wheel End Speed Sensor Repair . . . . . . . . . . . . . . . 28
Pressure Modulator Valve (PMV) Troubleshooting . . 30
ABS Modulator Valve . . . . . . . . . . . . . . . . . . . . . . . . . 33
Automatic Traction Control (ATC) Valve
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Performance Test of the Relay Valve . . . . . . . . . . . . . 34
ATC Valve Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Cab Mount ECU Pin Identification . . . . . . . . . . . . . . . 39
Frame Mount ECU Pin Identification . . . . . . . . . . . . . 43
Eaton ® , RoadRanger ® , and ServiceRanger ® are registered
trademarks of Eaton Corporation.