BENDIX MC-30 TRAILER ABS CONTROLLER User Manual

1
SD-13-4834
MC-30
™
CONTROLLER INTRODUCTION
The MC-30
™
controller is the Bendix antilock braking system
(ABS) controller assembly intended for application on air
braked heavy duty trailers, semi-trailers and dollies.
The Bendix
®
MC-30
™
controller features an integral LED
diagnostic display with magnetic reset for easy diagnostics
and fault code clearing. Blink code diagnostics are standard
and advanced diagnostic tool support is also available.
The MC-30
™
controller supports PLC communication
for indicator lamp, full diagnostics capability and other
customized features.
The ABS function of the MC-30
™
controller is designed to
provide a towed vehicle with improved stability and control
during braking while providing the maximum available
braking force.
Bendix
®
MC-30
™
Trailer ABS Controller Assembly
FIGURE 1 - MC-30
™
CONTROLLER TANK (NIPPLE)
MOUNT ASSEMBLY
Supply Port
1/2" NPT
ABS Modulator
Connector
(MOD1)
Delivery Ports
3/8" NPT (x4)
LED Diagnostic
Display
30-Pin
Connector
Control
Port
1/4" NPT
For updates to this Service Data Sheet, please visit www.bendix.com.
TABLE OF CONTENTS PAGE
Components . . . . . . . . . . . . . . . . . . . . . . .2
MC-30
™
Controller Comparison to MC-12
™
Modulator. .2
MC-30
™
Controller Assemblies. . . . . . . . . . . . . .2
MC-30
™
Controller with PLC . . . . . . . . . . . . . . .2
Wiring Harness (Pigtail) . . . . . . . . . . . . . . . . .3
Power and Ground . . . . . . . . . . . . . . . . . . . .5
ABS Indicator Lamp . . . . . . . . . . . . . . . . . . .5
Wheel Speed Sensors . . . . . . . . . . . . . . . . . .5
M-30T
™
ABS Modulator-Valves . . . . . . . . . . . . .6
J1708/J1587 Diagnostic Link . . . . . . . . . . . . . .6
Auxiliary I/O . . . . . . . . . . . . . . . . . . . . . . .6
MC-30
™
Controller Power-up Sequence . . . . . . . . .7
ABS Operation . . . . . . . . . . . . . . . . . . . . . .7
Self-Confi guration/Control Toggle . . . . . . . . . . . .8
Other Confi gurable Parameters . . . . . . . . . . . . 11
Odometer Function. . . . . . . . . . . . . . . . . . . 11
Fault Detection . . . . . . . . . . . . . . . . . . . . . 11
MC-30
™
Controller Diagnostic Display . . . . . . . . . 12
Blink Code Diagnostics . . . . . . . . . . . . . . . . 13
Bendix ABS Diagnostic Tools . . . . . . . . . . . . . 16
Contacting Bendix . . . . . . . . . . . . . . . . . . . 16
Correct Maintenance Practices . . . . . . . . . . . . 16
Servicing the MC-30
™
Controller. . . . . . . . . . . . 17
Replacing the EC-30T
™
Controller . . . . . . . . . . . 17
Overhaul of the Relay Valve . . . . . . . . . . . . . . 17
MC-12
™
Modulator / MCE-12 Service-Replacement. . 17
Reinstallation of the MC-30
™
Controller or
M-30T
™
Modulator-Valve. . . . . . . . . . . . . . . . 18
Leakage and Operational Tests . . . . . . . . . . . . 18
ABS Wiring. . . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting Flowcharts . . . . . . . . . . . . . . 24
Product Revision / Feature Introduction . . . . . . . . 32

BENDIX MC-30 TRAILER ABS CONTROLLER Specifications

General

Brand	BENDIX
Model	MC-30 TRAILER ABS CONTROLLER
Category	Controller
Language	English

Summary

MC-30T™ CONTROLLER COMPONENTS

MC-30T™ CONTROLLER ASSEMBLIES

ABS OPERATION

SELF-CONFIGURATION / CONTROL TOGGLE

Self-Configuration Procedure

Step-by-step guide for self-configuration using a magnet and diagnostic display.

FAULT DETECTION

ECU Fault

Explains the consequences of an ECU fault on system functions.

Voltage Fault

Describes the effect of voltage issues on ABS function and system operation.

MC-30T™ CONTROLLER DIAGNOSTIC DISPLAY

Reading a Fault

Fault Reset

BLINK CODE DIAGNOSTICS

Display Active Fault Codes

Reset Active Fault Codes

CORRECT MAINTENANCE PRACTICES

SERVICING THE MC-30T™ CONTROLLER

REMOVING THE MC-30T™ CONTROLLER OR M-30T™ MODULATOR-VALVE

Steps for removing the MC-30T™ controller or M-30T™ modulator-valve.

REPLACING THE EC-30T™ CONTROLLER

Procedure for replacing the EC-30T™ controller within the MC-30T™ assembly.

REINSTALLATION OF THE MC-30T™ CONTROLLER OR M-30T™ MODULATOR-VALVE

LEAKAGE AND OPERATIONAL TESTS

ABS WIRING

TROUBLESHOOTING

SECTION A - POWER-UP SEQUENCE - TRAILER MOUNTED ABS INDICATOR LAMP

SECTION B - POWER-UP SEQUENCE - DASH MOUNTED TRAILER ABS INDICATOR LAMP

SECTION C - TROUBLESHOOTING THE TRAILER MOUNTED ABS INDICATOR LAMP

SECTION D - TROUBLESHOOTING THE DASH MOUNTED TRAILER ABS INDICATOR LAMP WITH EC-30™ CONTROLLER

SECTION E - DIAGNOSTIC LED QUICK REFERENCE

SECTION F - TROUBLESHOOTING POWER TO THE MC-30™ CONTROLLER

SECTION G - TROUBLESHOOTING WHEEL SPEED SENSORS

SECTION H - TROUBLESHOOTING ABS MODULATORS