BENDIX TABS-6 TRAILER ABS MODULE Page 29 Service Data Download | Manualshive

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29

SECTION E: TROUBLESHOOTING THE TRAILER-MOUNTED

ABS INDICATOR LAMP CIRCUITRy

Electronic Control Unit (ECU)

.

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

(Pin D ABS Indicator

Lamp)

Looking into Premium

Bendix TABS-6

Module Wire Harness

(Pin 5 ABS Indicator

Lamp)

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27
28
29
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31
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Summary of Contents for TABS-6 TRAILER ABS MODULE

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 34: ...34 NOTES...

Page 35: ...35 NOTES...

Page 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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