1
ESP
®
is a registered trademark of DaimlerChrysler and is used by BCVS under license from DaimlerChrysler.
SD-13-4869
Bendix
®
EC-60
™
ABS / ATC / ESP Controllers (Advanced)
See SD-13-4863 for Standard and Premium Controllers
See SD-13-21021 for the Bendix
®
eTrac
™
Automated Air Suspension Transfer System
FIGURE 1 - EC-60
™
ADVANCED CONTROLLER
INTRODUCTION
The Bendix
®
EC-60
™
advanced controller is a member
of a family of electronic Antilock Braking System
(ABS) devices designed to help improve the braking
characteristics of air braked vehicles - including heavy- and
medium-duty buses, trucks, and tractors. ABS controllers
are also known as Electronic Control Units (ECUs).
Bendix
®
ABS uses wheel speed sensors, ABS pressure
modulator valves, and an ECU to control either four or six
wheels of a vehicle. The Bendix EC-60 controller monitors
individual wheel turning motion during braking and adjusts
or modulates the brake pressure at the wheel end. When
excessive wheel slip, or wheel lock-up is detected, the
Bendix EC-60 controller will activate the pressure modulator
valves to automatically reduce the brake pressure at one
or more of the wheel ends. By these actions, the ABS
system helps to maintain the vehicle's lateral stability and
steerability during heavy brake applications and during
braking on slippery surfaces.
In addition to the ABS function, advanced models of the
EC-60
™
controller provide ABS-based stability features
referred to as ESP
®
Electronic Stability Program. The
Bendix ESP system is an ABS-based stability system that
enhances vehicle stability by both reducing engine throttle
and by applying vehicle braking based on actual vehicle
dynamics. Accordingly, the ESP system is available only on
specic approved vehicle platforms after vehicle application
and development efforts and validation testing. Only
certain limited variations of an approved vehicle platform
are permitted without further validation of the ESP system
application.
ESP stability system consists of Yaw Control (YC) and Roll
Stability Program (RSP) features.
TABLE OF CONTENTS PAGE
General System Information
Introduction. . . . . . . . . . . . . . . . . . . . . . . 1
Components . . . . . . . . . . . . . . . . . . . . . 3-4
HardwareCongurations . . . . . . . . . . . . . . . 4
Bendix EC-60 Controller Inputs & Outputs . . . . . 5-7
Indicator Lamps and Power-Up Sequence . . . . . 8-9
ABS Operation . . . . . . . . . . . . . . . . . . . . . 9
ATC Operation . . . . . . . . . . . . . . . . . . 11-12
Advanced ABS With Stability . . . . . . . . . . 12-13
Important Safety Information About
The ESP Stability System . . . . . . . . . . . . 13-14
Dynamometer Test Mode . . . . . . . . . . . . . . 14
System Impact During Active Trouble Codes . . . 15
SystemReconguration . . . . . . . . . . . . . . . 16
Troubleshooting . . . . . . . . . . . . . . . . . 17-48
Sensor Calibration . . . . . . . . . . . . . . . . 17-19
Blink Codes and Diagnostic Trouble Codes . . 21-23
Wiring Schematic . . . . . . . . . . . . . . . . . . 48
Glossary. . . . . . . . . . . . . . . . . . . . . . . . 49
J1587 SID and FMI Codes . . . . . . . . . . . . 51-55
UDS Codes . . . . . . . . . . . . . . . . . . . . 56-60
Additional features include Automatic Traction Control
(ATC). Bendix ATC can improve vehicle traction during
acceleration, and lateral stability while accelerating through
curves. ATC utilizes Engine Torque Limiting (ETL)
where the ECU communicates with the engine’s controller
and/or Differential Braking (DB) where individual wheel
brake applications are used to improve vehicle traction.
Advanced Bendix EC-60 controllers have a drag torque
control feature which reduces driven-axle wheel slip (due
to driveline inertia) by communicating with the engine’s
controller and increasing the engine torque.
For vehicles with the Hill Start Feature optional feature,
this system interfaces between the transmission and
braking system to help the driver prevent the vehicle from
rolling downhill when moving up a steep incline from a
stationary position.
All Four Connectors Are Used.
(If only two or three connectors are in
use - see SD-13-4863)
The driver is always responsible for the control
and safe operation of the vehicle at all times. The
Bendix
®
ESP
®
stability system does not replace the
need for a skilled, alert professional driver, reacting
appropriately and in a timely manner, and using safe
driving practices.
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