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15

How the Bendix

®

 

Trailer Remote Diagnostic Unit 

(T

RDU

) Tool Operates

When the TRDU tool is plugged into the adapter, and the 
adapter/TRDU tool is installed between the trailer connector 
and the J560 connector of the towing vehicle, all the LEDs 

will illuminate, and the green LED will flash four (4) times 

to indicate communications have been established.
If the ABS Electronic Control Unit (ECU) has no active 
Diagnostic Trouble Codes (DTCs), only the green LED will 
remain illuminated.
If the ABS ECU has at least one active DTC the TRDU 

tool displays the first DTC by illuminating the red LEDs, 

indicating the malfunctioning ABS component and its 
location on the vehicle.  (See Figure 13.)  If there are 
multiple DTCs on the ABS system, the TRDU tool will 

display one diagnostic trouble code first, then once that 

DTC has been repaired and cleared, the next code will 
be displayed.  
The TRDU tool repeatedly blinks out the mileage stored 
once communications have been established.  By counting 
the sequence of blinks and/or strobes on the blue LED the 
odometer reading is given.  

See Odometer Function on 

page 8 for more details.

• 

VLT (Flashing indicates either over- or under-voltage 
condition)

To pinpoint the root cause and to ensure the system 

diagnostic trouble code is properly corrected the first time, 

additional troubleshooting may be necessary.

Bendix TRDU Tool Reset Function

The magnetic reset switch is located by the letter "B" in 
the Bendix logo on the top of the TRDU tool.  Activation 
requires a magnet with 30 gauss minimum.

The reset operations are:
1. If the magnet is held over the switch for less than six (6) 

seconds the "clear diagnostic trouble codes" command 
is sent.

2. If the magnet is held over the switch for more than six 

(6) seconds, but less than 11 seconds, the Bendix

®

 ABS 

"self-configuration command" is sent.

Additionally, it is recommended at the end of any inspection 
that the user switches off and restores the power to the ABS 
ECU, then check the ABS Indicator Lamp operation and 
TRDU tool to see if they indicate any remaining Diagnostic 
Trouble Codes.

MPSI Bendix Cartridge

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

 tool.  For more information on the Bendix 

diagnostic cartridge from MPSI, contact Bendix or refer to 
your local authorized Bendix parts outlet.

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 parts outlet.

CONTACTING BENDIx

www.Bendix.com

The Bendix on-line contacts directory will make it easy 

for you to find the Bendix resources 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. ET, and 
follow the instructions in the recorded message.

Alternatively, you may e-mail the Bendix Tech Team at:  
[email protected].

To better serve you, please record the following 
information before you call the Bendix Tech Team, 
or include this information in your e-mail:

  •  Bendix product model number, part number and 

configuration.

  •  Vehicle make and model.

FIGURE 12 

- THE BEndIx

®

 TRdU

 TOOL And AdAPTER

FIGURE 13 - BEndIx TRdU

 

TOOL LEd LOCATIOnS

Adapter (802165)

To Towing

Vehicle

J560 

Connector

To Trailer

Connector

Содержание TABS-6 TRAILER ABS MODULE

Страница 1: ...filter to help prevent foreign material from entering the control port TABLE OF CONTENTS PAGE Introduction 1 General Safety Guidelines 2 Components 2 Mounting Configurations 3 PLC Communications 3 Wi...

Страница 2: ...th care and verify that no pressure is present Never remove a component or plug unless you are certain all system pressure has been depleted Use only genuine Bendix brand replacement parts components...

Страница 3: ...S indicator lamp 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 tool...

Страница 4: ...L SAR 4 Pin Diagnostic 5 Pin Power and Indicator Lamp POWER WL 3 Pin Modulator 3 MOD3 Optional 3 Pin Modulator 2 MOD2 Auxiliary Optional 5XXX To ECU or Pigtail To Bendix TABS 6 Module Pigtail To Diagn...

Страница 5: ...r leads to jounce lines 3 Gently push DO NOT STRIKE the sensor into the mounting block hole until it bottoms out on the face of the tone ring Secure the cable lead wire to the knuckle axle housing thr...

Страница 6: ...modulator relay valves are available with nominal crack pressure of 4 5 0 5 psi Previous models of Bendix TABS 6 modulator relay valves came with a nominal crack pressure of 3 0 0 5 psi Installation...

Страница 7: ...tch Pad feature which allows the customer or end user to store up to 756 bytes of information This information can then be read using the Bendix ACom Diagnostic Software version 6 5 and higher If addi...

Страница 8: ...ngle modulator relay valve to control one or more wheels on a given vehicle side In the case of an unbalanced braking surface the side control will individually control wheels on each side just under...

Страница 9: ...gned However repeated occurrences of a given trouble code can cause the code to latch that is be retained as active even if the condition is only intermittent Once the code is latched a manual reset w...

Страница 10: ...ink code diagnostics can also be used to reset active DTC codes With Ignition Power Applied Cycle Brake Light Power Blink Code Action 3 times Display Active DTCs 4 times Display Inactive DTCs 5 times...

Страница 11: ...nic Control Unit ECU has the proper tire size settings 3 5 SR Tire diameter out of range 2 13 4 5 SAL Tire diameter out of range 3 13 5 5 SAR Tire diameter out of range 4 13 1st Digit Sensors 2 2 Sens...

Страница 12: ...3 MOD3 ABS modulator dynamic error 9 8 4 MOD2 Valve configuration error 8 13 Verify correct ABS configuration using blink codes or other diagnostic tools If needed reset to the defaultABS configuratio...

Страница 13: ...wiring or components as required TRAILER MOUNTED ABS INDICATOR LAMP 13 1 ABS lamp shorted or open 81 3 4 5 6 or 12 Check for corroded damaged wiring or connectors between the ECU and ABS Indicator La...

Страница 14: ...USB Cable Noregon Adapter J2497 PLC or J1939 Lap Top Computer FIGURE 10 THE BEndIx TRAILER REmOTE dIAGnOSTIC UnIT TRdU LED lights illuminate Diagnostic Trouble Codes 10 LEDs FIGURE 10 LAP TOP COmPUTER...

Страница 15: ...eld over the switch for more than six 6 seconds but less than 11 seconds the Bendix ABS self configuration command is sent Additionally it is recommended at the end of any inspection that the user swi...

Страница 16: ...f any troubleshooting where the service brakes are slow to apply and other possible causes have been ruled out SERVICE REPLACEMENT OF OTHER ABS CONTROLLERS The Bendix TABS 6 module is designed to be u...

Страница 17: ...E tape is not approved and will void the Bendix ABS TRSP valve warranty 1 Before performing leak tests block the wheels 2 Fully charge the air brake system and verify proper brake adjustment 3 Make se...

Страница 18: ...very 18 inches 9 Apply a moderate amount of non conductive electrical grease to each connector pin before reconnecting MISCELLANEOUS MAINTENANCE GLAD HAND MAINTENANCE NEVER POUR ANy LIQUIDS alcohol an...

Страница 19: ...E MOD1 2 COMMON MOD2 HOLD MOD3 RELEASE MOD3 COMMON MOD3 HOLD SENSOR ADD LEFT SAL SENSOR ADD LEFT SAL J1587 B J1587 A J1587 GROUND J1587 VOLTAGE AUx6 2 13 1 7 14 8 16 4 10 15 3 9 17 11 5 12 6 18 2 1 2...

Страница 20: ...C NC D Warning Lamp E Ground TABS 6 2S 1M DOLLY AXLE CONTROL Trailer Chassis Harness Trailer ABS Pigtail Harness 5 PIN CONNECTOR Ignition Power Brake Light Power Ground 7 PIN CONNECTOR SUPPLY LINE CON...

Страница 21: ...b Side Left Road Side Bendix TABS 6 MOD1 Trailer ABS Module Bendix SR 5 Trailer Spring Brake Valve Bendix WS 24 Wheel Speed Sensor SR Bendix WS 24 Wheel Speed Sensor SL Bendix BR9235 MOD2 Trailer ABS...

Страница 22: ...ule Bendix SR 5 Trailer Spring Brake Valve Troubleshooting System Schematics continued Installation Guidelines for the Bendix TABS 6 4S 2M Axle ABS Configuration MOD1 Bendix TABS 6 ABS Unit controls t...

Страница 23: ...tem Schematics continued Installation Guidelines for the Bendix TABS 6 4S 3M Side Axle ABS Configuration MOD1 Bendix TABS 6 ABS Unit controls the left road side wheel s of a primary axle s MOD2 Bendix...

Страница 24: ...ircuit DTC is found isolate the area needing repair by repeating the measurements at all connections in the affected circuit towards the modulator wheel speed sensor etc No voltage or resistance measu...

Страница 25: ...AMP Troubleshoot the trailer mounted ABS indicator lamp circuitry Go to Section E page 29 Troubleshoot the trailer mounted ABS indicator lamp circuitry Go to Section E page 29 The Bendix TABS 6 module...

Страница 26: ...trailer ABS indicator lamp remains ON with no trailer connected troubleshoot the dash mounted trailer lamp circuit on the tractor If the trailer ABS lamp remains ON with a trailer connected rerun the...

Страница 27: ...he default ABS con guration and power up to initiate auto configuration 6 Power 1 Over voltage Go to Section F Power Supply 2 Low voltage Go to Section F Power Supply 3 Excessive power line resistance...

Страница 28: ...s Dynamic modulator DTCs The red M1 M2 and or M3 LED is on to indicate a DTC with an ABS modulator The example above shows the LEDs illuminated when there is a DTC for a second ABS modulator MOD2 The...

Страница 29: ...U Go to Section F page 30 Go to Section A page 25 Go to Section A page 25 Go to Section A page 25 Go to Section A page 25 27 28 5 or 18 pin ECU Looking into Standard Bendix TABS 6 Module Wire Harness...

Страница 30: ...und pin of the ECU connector 5 or 18 pin ECU Go to Section A page 25 Measure the loaded voltage across a type 1157 brake light bulb Looking into Premium Bendix TABS 6 Module Wire Harness ECU Connector...

Страница 31: ...agnostics Go to Section C page 27 Trailer Remote Diagnostic Unit Go to Section D page 28 Hand held or PC diagnostic tools Then check for Dynamic WSS DTCs see left colum Then rerun the power up sequenc...

Страница 32: ...applying ignition power to the trailer Then rerun the power up sequence Go to Section A page 25 If MOD1 DTCs continue after the power up replace the module Continue if after a power up the trailer mou...

Страница 33: ...on the production line or in the field 5 Pin ECU Pin Out Bendix Part Number 18 Pin ECU Pin Out 2 Pin Sensor Pin Out and Routing Info Bendix Part Number 2 Pin Sensor Pin Out and Routing Info Bendix Pa...

Страница 34: ...34 NOTES...

Страница 35: ...35 NOTES...

Страница 36: ...15 Bendix Commercial Vehicle Systems LLC a member of the Knorr Bremse Group All Rights Reserved 05 15 Log on and Learn from the Best On line training that s available when you are 24 7 365 Visit www b...

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