Bendix Commercial Vehicle Systems EC-60 ATC STD/PREM CONTROLLERS - Manual

1
Standard Frame
Premium Frame Premium Cab
Standard Cab
®
SD-13-4863
Bendix ® EC-60 ™ ABS / ATC Controllers (Standard & Premium)
FIGURE 1 - EC-60 ™ CONTROLLERS
Frame Mount Cab Mount
INTRODUCTION
Bendix
® EC-60 ™ controllers are members 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 modulator valves, and
an ECU to control either four or six wheels of a vehicle. By monitoring
individual wheel turning motion during braking, and adjusting or
pulsing the brake pressure at each wheel, the EC-60 ™ controller is
able to optimize slip between the tire and the road surface. When
excessive wheel slip, or wheel lock-up, is detected, the EC-60 ™
controller will activate the Pressure Modulator Valves to simulate
a driver pumping the brakes. However, the EC-60 ™ controller is
able to pump the brakes on individual wheels (or pairs of wheels),
independently, and with greater speed and accuracy than a driver.
In addition to the ABS function, premium models of the EC-60
™
controller provide an Automatic Traction Control (ATC) feature.
Bendix ATC can improve vehicle traction during acceleration, and
lateral stability while driving 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.
Premium 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.
TABLE OF CONTENTS PAGE
General System Information
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ECU Mounting . . . . . . . . . . . . . . . . . . . . . . . . . 2
EC-60 ™ Controller Hardware Configurations . . 3
EC-60 ™ Controllers with PLC . . . . . . . . . . . . . . 3
EC-60 ™ Controller Inputs . . . . . . . . . . . . . . . . . 3
ABS Off-Road Switch and Indicator Lamp . . . . 4
EC-60 ™ Controller Outputs . . . . . . . . . . . . . . . . 4
Power-Up Sequence . . . . . . . . . . . . . . . . . . . . 5
ABS Operation . . . . . . . . . . . . . . . . . . . . . . . . . 6
ATC Operation . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dynamometer Test Mode . . . . . . . . . . . . . . . . . 8
Automatic Tire Size Calibration . . . . . . . . . . . . 9
ABS Partial Shutdown . . . . . . . . . . . . . . . . . . . 9
System Reconfiguration
EC-60 ™ Controller System Reconfiguration . . 10
Troubleshooting
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Blink Codes and Diagnostic Trouble Codes . . 12
Using Hand-Held or PC-based Diagnostics . . 15
Diagnostic Trouble Codes:
Troubleshooting Index . . . . . . . . . . . . . . . . 17
Trouble Code Tests . . . . . . . . . . . . . . .18 - 27
Connectors and Harnesses . . . . . . . . . . .28 - 31
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 - 34
Wiring Schematics . . . . . . . . . . . . . . . . . .35 - 40
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Appendix: J1587 SID and FMI Codes . . . .42-44
See SD-13-4869 for Advanced Controllers
Two Connectors Are Used
Three Connectors Are Used.
(If all four connectors are in use - see the
Advanced SD sheet SD-13-4869)