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16

READ/WRITE (SCRATCHPAD) FUNCTION

Using the Bendix ABS diagnostic software, OEM and fl eet 
service records can be permanently stored in the EC-30

 

controller.  Data contained in the OEM scratchpad area is 
protected by a special password and can not be revised 
in the fi eld.  Technician and date information must be 
entered prior to the fl eet scratchpad being updated.  Some 
earlier revisions of the EC-30

 controller do not support 

the read/write function.

For more information on the Bendix ABS Diagnostic 
Software program, or RP-1210 compliant tools, contact 
Bendix or refer to your local authorized Bendix parts 
outlet.

NEXIQ (MPSI) BENDIX CARTRIDGE

MPSI provides a Bendix cartridge for use with the Pro-Link

®

 

tool.

 

 It can also be used to diagnose the EC-15

, EC-16

EC-17

 and EC-30

 tractor ABS controller units.  For 

more information on the Bendix diagnostic cartridge from 
MPSI, contact Bendix or refer to your local authorized 
Bendix dealer.

PLC DIAGNOSTIC TOOL

Diagnostic tools are available that detect the presence 
of a PLC signal and perform further system diagnostics 
directly on the power line.  For more information on these 
diagnostic tools, contact Bendix or refer to your local 
authorized Bendix dealer.

CONTACTING BENDIX - 

www.Bendix.com

The Bendix on-line troubleshooting guide for the MC-30

 

controller will help you determine the cause of any 
conditions that may be preventing 100% performance 
of your braking system.  For additional troubleshooting 
information on the MC-30

 controller, please refer to our 

literature request section.

The Bendix on-line contacts guide will make it easy for 
you to fi nd the Bendix contacts you need.  From this 
page, you can navigate to technical support contacts, 
service engineers, Bendix account managers, international 
contacts and more.  Bendix.com is your complete Bendix 
resource.

Bendix Technical Assistance Team: 

For direct 

personal technical support, call the Bendix technical 
assistance team at 

1-800-AIR-BRAKE

 (1-800-247-2725), 

Monday through Friday, 8:00 A.M. to 6:00 P.M. EST, and 
follow the instructions in the recorded message.
Or, you may e-mail the Bendix technical assistance team 
at:  [email protected].

To better serve you, please record the following 
information before calling the Bendix Tech Team:

Bendix product model number, part number and confi guration; 
vehicle make and model;  Vehicle confi guration. (Number 
of axles, tire size, etc.);  System performance symptoms.  
When do they occur?;  What faults have been identifi ed 
using LEDs, blink codes or diagnostic tools?;  What 
troubleshooting / measurements have been performed?; 
What Bendix service data literature do you have or need?; 
Do you have access to the internet or email?

CORRECT MAINTENANCE PRACTICES
WARNING! PLEASE READ AND FOLLOW 
THESE INSTRUCTIONS TO AVOID PERSONAL 
INJURY OR DEATH:

When working on or around a vehicle, the following 
general precautions should be observed at all times.

1.  Park the vehicle on a level surface, apply the 

parking brakes, and always block the wheels.  
Always wear safety glasses.  

2.  Stop the engine and remove ignition key when 

working under or around the vehicle.  When 
working in the engine compartment, the engine 
should be shut off and the ignition key should be 
removed. Where circumstances require that the 
engine be in operation, EXTREME CAUTION should 
be used to prevent personal injury resulting from 
contact with moving, rotating, leaking, heated or 
electrically charged components.

3.  Do not attempt to install, remove, disassemble 

or assemble a component until you have read 
and thoroughly understand the recommended 
procedures.  Use only the proper tools and observe 
all precautions pertaining to use of those tools.

4.  If the work is being performed on the vehicle’s 

air brake system, or any auxiliary pressurized air 
systems, make certain to drain the air pressure 
from all reservoirs before beginning ANY work 
on the vehicle.  If the vehicle is equipped with an 
AD-IS

®

 air dryer system or a dryer reservoir module, 

be sure to drain the purge reservoir.

5.  Following the vehicle manufacturer’s recommended 

procedures, deactivate the electrical system in a 
manner that safely removes all electrical power 
from the vehicle.

6.  Never exceed manufacturer’s recommended 

pressures.  

7.  Never connect or disconnect a hose or line 

containing pressure; it may whip. Never remove 
a component or plug unless you are certain all 
system pressure has been depleted.

8.  Use only genuine Bendix

®

 replacement parts, 

components and kits. Replacement hardware, 

Parallel or 

Serial Cable

J1708/J1587

or J1939

Lap Top 

Computer

PDM (RP-1210)

FIGURE 15 - BENDIX ABS DIAGNOSTIC SOFTWARE

Summary of Contents for MC-30 TRAILER ABS CONTROLLER

Page 1: ...very 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 Controll...

Page 2: ...Effective March 1 2001 all towed vehicles must transmit a signal to control an in cab trailerABS indicator lamp Trailers built after this date will transmit the status of the trailerABS unit over the...

Page 3: ...or Lamp Connector The MC 30 controller pigtail utilizes the TTMA RP 97 99 5 pin Packard Weather Pack connector for brake light power constant power ground and the trailer mountedABS indicator lamp The...

Page 4: ...ator 2 MOD2 3 Pin Modulator 1 MOD 1 4 Pin Diagnostic DIAG 5 Pin Power and Indicator Lamp PWR WL 2 Pin Wheel Speed Sensors ECU Connector Jackscrew Tighten to 15 20 in lbs Left Rear LFT RER Right Rear R...

Page 5: ...from 100 tooth tone rings by default Vehicle axle and ABS control configurations determine if two or four wheel speed sensors must be used See the MC 30 controller s electrical system schematic for wh...

Page 6: ...hassis Mounted The M 30T modulator valve bracket mount assembly is mounted directly to the trailer frame rail or crossmember See Figure 12 The bracket studs are secured using three 5 16 18 nuts and lo...

Page 7: ...de In the case of an unbalanced braking surface MC 30 controller side control will individually control each side just under the lock limit Side control is available in 2S 2M and 4S 2M installations N...

Page 8: ...oup B When activated the MC 30 controller will toggle theABS control between axle control and dolly axle control or side control When a self configuration occurs without an ABS control toggle the ABS...

Page 9: ...on using the LEDs or blink codes 4S 2M Side to 2S 1M Axle CHART 7 EXAMPLES OF SELF CONFIGURATION AND ABS CONTROL TOGGLE 1 of 2 Your dolly or steer axle has two wheel speed sensors and one ABS modulato...

Page 10: ...ation using the LEDs or blink codes 4S 2M Axle to 2S 2M Axle CHART 7 EXAMPLES OF SELF CONFIGURATION AND ABS CONTROL TOGGLE 2 of 2 Your trailer has two wheel speed sensors and two ABS modulators that a...

Page 11: ...aking Voltage Fault While voltage is out of range ABS function is disabled The system reverts to normal braking When the correct voltage level is restored full ABS function is available Operating volt...

Page 12: ...he active fault code and LEDs can be reset by briefly holding a magnet in place at the RESET location of the diagnostic display See Figure 13 All of the LEDs will be on while the magnet is held in pla...

Page 13: ...dal four times Following activation there will be a 5 second delay followed by a blink code display of all history fault codes See chart 11 Reset Active Fault Codes To reset active fault codes apply i...

Page 14: ...14 CHART 11 MC 30 CONTROLLER BLINK CODE DEFINITIONS 1 of 2...

Page 15: ...15 CHART 11 MC 30 CONTROLLER BLINK CODE DEFINITIONS 2 of 2...

Page 16: ...ord the following information before calling the Bendix Tech Team Bendixproductmodelnumber partnumberandconfiguration vehicle make and model Vehicle configuration Number of axles tire size etc System...

Page 17: ...n ECU connector and the 3 pin modulator connector from the MC 30 controller 2 Remove the MC 30 controller from the vehicle if necessary 3 Note the EC 30T controller position on the MC 30 controller as...

Page 18: ...is permitted Check the relay exhaust port and the area around the retaining ring with the trailer service brakes fully applied A single 1 bubble within 3 seconds is permitted If excessive leakage is...

Page 19: ...8 00 N A WM 2S Sensor Side WM 2P Pigtail Side 12034145 460 202 20141 P Side of Connector N A 12014254 for Weather Pack Terminals 12014012 for Weather Pack Terminals 12048159 18 16 GA Deutsch DTM Serie...

Page 20: ...20 FIGURE 16 MC 30 CONTROLLER ELECTRICAL SYSTEM SCHEMATIC...

Page 21: ...Power C NC D Warning Lamp E Ground C E B A D Ignition Power Brake Light Power Ground 7 Pin Connector 2S 2M SIDE CONTROL ABS Light MC 30 MOD1 MOD2 Pigtail Harness Trailer Chassis Harness Left Front WS...

Page 22: ...Connector 5 Pin Connector A Brake Light Power B Ignition Power C NC D Warning Lamp E Ground C E B A D ABS Dual Axle Trailer 4S 2M AXLE CONTROL Trailer Chassis Harness MOD2 NOTE For axle control MOD1...

Page 23: ...a piping schematic only not a construction drawing Components and configuration are designed to enable compliance with FMVSS 121 PR 3 Coupling Control TR 3 DC 4 SV 4 Coupling Supply AntiLock Control...

Page 24: ...ays begin by observing the ABS indicator lamp during the MC 30 controller power up sequence If it is necessary to make electrical measurements always begin by taking voltage and resistance measurement...

Page 25: ...come on Note Only towing vehicles built after March 1 2001 will be required to have a trailer ABS indicator lamp The trailer ABS indicator lamp located on the vehicle dash is only activated by a PLC s...

Page 26: ...LED is on Troubleshoot the power supply to the MC 30 controller Go to Section F With power off to the MC 30 controller disconnect the 30 pin connector Verify continuity from pin D3 of the 30 pin conne...

Page 27: ...er ABS indicator lamp and fuse When repair is made reconnect the 30 pin connector to the EC 30 controller and rerun the power up sequence Go to Section A 1 2 3 K J H G F E D C B A EC 30 Controller 30...

Page 28: ...er is receiving very low or no voltage The ECU LED may be on in this case Go to Section F Wheel Speed Sensor Fault The red SEN LED is on to indicate a fault condition with a wheel speed sensor The exa...

Page 29: ...power supply Turn off power to the MC 30 controller and disconnect the 30 pin connector Supply ignition power to the trailer and measure voltage between pin E1 and ground pin D2 at the 30 pin connect...

Page 30: ...sensor lead routing and clamping If a circuit fault is found isolate the area needing repair by repeating the measurements at all connections in the wheel speed sensor circuit Wheel speed sensor faul...

Page 31: ...ions If a circuit fault is found isolate the area needing repair by repeating the measurements at all connections in the ABS modulator circuit ABS modulator fault identified Dynamic ABS Modulator Faul...

Page 32: ...EL 756902350442 G002869 P N 5004358 R04 SERIAL G002869 REF 12207569 EC 30T CAPABLE OF 4S2M 2S2M 2S1M J1587 PLC ONE OR MORE U S PATENTS APPLY 4837552 ECU Part Number Serial Number Hardware Revision Num...

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