®
®
™
Bendix
Gen 4
and Gen 5
™
™
GEN 4
AND GEN 5
This manual describes both the cab mount and the frame
mount versions of the Bendix
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
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.
™
ABS for Trucks, Tractors, and Buses
Cab-Mounted Models
ABS INTRODUCTION
®
Gen 4
™
and Gen 5
™
Antilock
®
brand
®
.
FIGURE 1 - Bendix
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
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
trademarks of Eaton Corporation.
Frame-Mounted Model
®
ABS Controller Assemblies
®
are registered
26
1
