Bendix-commercial-vehicle-systems TABS-6 TRAILER ABS MODULE User Manual

1®Bendix® TABS-6 Trailer ABS ModuleFIGURE 1 - TABS-6 STANDARD AND PREMIUM MODULESINTRODUCTIONThe Bendix® TABS-6 module is an integrated trailer ABS c

10Display Confi gurationTo check the ABS confi guration, apply ignition power and depress / release the brake pedal 6 times within 15 seconds. Following

11Diagnostic Trouble Codes (DTCs) (continued) 1st 2nd Fault Description Repair Information J1587 J1587 Digit Digit (SID) (FMI)

12J1587 DIAGNOSTIC 12 1 J1587 diagnostics shorted or open • Check for corroded/damaged wiring or connectors 250 3, 4, 5 between the EC

13Troubleshooting: Using Hand-Held or PC-Based Diagnostic ToolsUSING HAND-HELD OR PC-BASED DIAGNOSTICSTroubleshooting and diagnostic trouble code clea

14How the Bendix® TRDU™ Tool OperatesWhen the TRDU™ tool is plugged into the adapter, and the adapter/TRDU™ tool is installed between the trailer conn

15Monday through Friday, 8:00 A.M. to 6:00 P.M. EST, and follow the instructions in the recorded message.Alternatively, you may e-mail the Bendix tech

16lock washers for the frame-mount unit, or a schedule 80 (heavy gauge steel) ¾" nipple for the tank-mount unit.Inspect the location selected for

17FIGURE 15 - STANDARD TABS-6 MODULE (5-PIN ECU CONNECTOR) ELECTRICAL SCHEMATIC - 2S/1MFIGURE 16 - PREMIUM TABS-6 MODULE (18-PIN ECU CONNECTOR) ELECTR

18Troubleshooting: System Schematics2S/1M - AXLECONTROLTrailer Chassis Harness ABS Dual Axle Trailer Bendix SR-5™ TrailerSpring BrakeValve Trailer ABS

19Trailer ABSModuleWS-24™ Wheel Speed Sensor WS-24™ Wheel Speed Sensor 2S/2M - AXLE CONTROLTrailerChassis HarnessABSDual Axle TrailerTrailer ABSPigtai

2COMPONENTSInstallations of the TABS-6 Module typically utilize the following components:• Bendix® WS-24™ wheel speed sensors (2 or 4, depending on co

20Trailer ABSModuleWS-24™ Wheel Speed SensorsWS-24™ Wheel Speed SensorsSR-5™ TrailerSpring BrakeValveBR9235™“MOD2”ModulatorRelayValveTABS6“MOD1”4S/2M

21Trailer ABSModuleWS-24™ Wheel Speed SensorsWS-24™ Wheel Speed SensorsSR-5™ TrailerSpring BrakeValveBR9235™ModulatorRelay ValveTABS-6“MOD1”ABSTri-Axl

22Troubleshooting FlowchartsDiagnostic trouble code information can be retrieved from the TABS-6 module by using blink code diagnostics, or a diagnost

23SECTION A: (POWER-UP SEQUENCE) TRAILER-MOUNTED ABS INDICATOR LAMP

24SECTION B: (POWER-UP SEQUENCE) DASH-MOUNTED ABS INDICATOR LAMP

25SECTION C: DIAGNOSTIC TROUBLE CODE (DTC) BLINK CODE QUICK REFERENCETo Read/Clear Diagnostic Troubleshooting Codes (DTCs):1. Apply constant power

26SECTION D: DIAGNOSTIC TROUBLE CODE (DTC)TRDU™ TOOL LED QUICK REFERENCEODOM1PowerSystem OK - A solid green VLT LED indicates propervoltage is reachin

27SECTION E: TROUBLESHOOTING THE TRAILER-MOUNTEDABS INDICATOR LAMP CIRCUITRYLooking into Standard TABS-6 Module Wire Harness (Pin D ABS Indicator Lamp

28SECTION F: TROUBLESHOOTING THEPOWER SUPPLYMeasure the loaded voltage across a type 1157 brake light bulb.Looking into Premium TABS-6 Module Wire Har

29SECTION G: TROUBLESHOOTING THEWS-24™ WHEEL SPEED SENSORS (WSS)Looking into Premium TABS-6 Module Wire Harness when Additional Wheel Speed Sensors ar

3FIGURE 2 - POWER LINE WITHOUT PLC SIGNALFIGURE 3 - POWER LINE WITH PLC SIGNALSuggested oscilloscope settings are (AC coupling, 1 volt/div, 100 μsec/d

30SECTION H: TROUBLESHOOTING THE MODULATOR RELAY VALVESPin 10 is MOD3 releasePin 4 is MOD3 CommonPin 16 is MOD3 HoldLooking into Modulator Connector P

31ECU Part Number LabelThe external part number label is located on the relay valve portion of the module. Label shown above is located under the rem

32BW2469 ©2010 Bendix Commercial Vehicle Systems LLC • All Rights Reserved • 7/10 • Printed in U.S.A. Printed on recycled paper

4ABS INDICATOR LAMPTrailer-mounted LampThe TABS-6 module controls an ABS indicator lamp to show the trailer ABS status. With power supplied by the to

5FIGURE 6 - BENDIX® WS-24™ WHEEL SPEED SENSORS90° Speed SensorsStraight Speed SensorsSensor ClampingSleeve1. For increased corrosion protection we re

6Tank (Nipple) MountedThe BR9235™ MRV can be tank-mounted using a schedule 80 (heavy gauge steel) 3/4" NPT nipple directly between the trailer su

7Trailer ABS Indicator LampAt power-up without detected faults, the trailer ABS indicator lamp will turn on for 2.5 seconds as a bulb check and then t

8ODOMETER FUNCTIONOdometerThe TABS-6 module includes an odometer function to provide a means of storing the accumulated mileage of the vehicle. The mi

9PARTIAL ABS SHUTDOWNDepending on the trouble code detected, the ABS ECU partly or completely disables the ABS functionality. The trailer ABS system