Bendix-commercial-vehicle-systems EC-80 ABS ATC SD Manuel d'utilisateur

1®SD-13-4983Bendix® EC-80™ ABS / ATC ControllersFIGURE 1 - BENDIX® EC‑80™ ABS AND ATC CONTROLLERSINTRODUCTIONBendix® EC‑80™ ABS and ATC controllers ar

10The Dynamometer Test Mode will remain active even if power to the ECU is removed and re‑applied. Press and release the blink code switch three (3)

11Reconguring Bendix® EC-80™ ControllersSYSTEM RECONFIGURATION The Bendix® EC‑80™ controller is designed to allow the technician to change the defaul

12Troubleshooting: GeneralRead and follow the General Safety Guidelines on page two (2) of this document.REMOVING THE BENDIX® EC-80™ CONTROLLER ASSEMB

13FIGURE 8 - EXAMPLE OF BLINK CODE MESSAGETroubleshooting: Blink Codes and Diagnostic ModesBLINK CODESBlink codes allow a technician to troubleshoot A

14DIAGNOSTIC MODESIn order to communicate with the ECU, the controller has several modes that the technician can select, allowing information to be re

15Using blink codes, the technician may review all inactive trouble codes stored on the ECU. The ABS indicator lamp will display inactive diagnostic

16USING HAND-HELD OR PC-BASED DIAGNOSTICSTroubleshooting and Diagnostic Trouble Code (DTC) clearing (as well as reconguration) may also be carried ou

17Bendix® RDU™ Communication ProblemsIf the ABS ECU does not respond to the RDU tool’s request for Diagnostic Trouble Codes, the RDU tool will illumin

18Active or Inactive Diagnostic Trouble Code INDEXHow to interpret the rst digit of messages received when active or inactive Diagnostic Trouble Code

19Troubleshooting Diagnostic Trouble Codes:Wheel Speed Sensors 2 Left Steer Axle Sensor 3 Right Steer Axle Sensor 4 Left Drive Axle Sensor 5 Right

2between the transmission and braking system to help the driver prevent the vehicle from rolling backwards when moving forward from a stationary posit

20Cab-mount ECU: Looking into wire harness connectorConnector Pin Wheel Speed Sensor LocationX118 Way10 Right Drive Axle (+)11 Right Drive Axle (-)X21

21Troubleshooting Diagnostic Trouble Codes:Pressure Modulator Valves 7 Left Steer Axle 8 Right Steer Axle 9 Left Drive Axle 10 Right Drive Axle

22Pressure Modulator Valve Repair Tests:1. Take all measurements at ECU harness connector pins in order to check wire harness and PMV. Probe the con

23Troubleshooting Diagnostic Trouble Codes:Traction Control Valves 18 Traction Control Valve1st. BlinkCodeLocation 2nd. Diagnostic Blink Trouble C

24Troubleshooting Diagnostic Trouble Codes: Power Supply 6 Power Supply1st. BlinkCodeLocation 2nd. Diagnostic Blink Trouble Code Code Description

25 11 J19391st. BlinkCodeLocationTroubleshooting Diagnostic Trouble Codes: J1939 Serial Communications2nd. Blink CodeDiagnostic Trouble Code Descr

26Troubleshooting Diagnostic Trouble Codes:ECU 13 ECU1st. BlinkCodeLocation2nd Blink CodeDiagnostic Trouble Code Description(With HEX designation

27 12 Miscellaneous1st. BlinkCodeLocationTroubleshooting Diagnostic Trouble Codes: MiscellaneousRepair Information2nd. Blink CodeDiagnostic Troubl

28 12 Miscellaneous1st. BlinkCodeLocationTroubleshooting Diagnostic Trouble Codes: Miscellaneous2nd. Blink CodeDiagnostic Trouble Code Description

29Miscellaneous Troubleshooting Test Measurement Stop Lamp Switch to Ground 9 to 17 VDCFor all tests below, take all measurements at ECU harness co

3Bendix EC-80 ATC ControllersBendix EC‑80 ATC controllers support applications up to six sensor/six modulator (6S/6M) installations with ATC and drag

30Bendix EC-80 ABS X1 Connector Pin AssignmentsPin Designation Pin Designation Pin Designation1 Ground 7 J1939 Low 13 Not Used2 Trailer ABS WL

31Bendix EC-80 ATC X2 Connector Pin Assignments Pin Designation Pin Designation Pin Designation1 PMV SA Left HLD 7 PMV SA Right REL 13 PMV DA Rig

32ABS/ATC WIRING ECU Wiring Harness ConnectorsBendix® EC‑80™ controllers are designed to interface with AMP MCP 2.8 connectors as referenced in Chart

33ABS Component Connector Wire TerminalWire Seal/ PlugTerminal LockTerminal Crimp ToolController Harness17‑Way AMPMCP 2.8 (X1)1718091‑1927768‑91 ‑ 2.5

34Wheel Speed Sensor WiringRoute sensor wiring coming out of the wheel ends away from moving brake components. Sensor wiring needs to be secured to t

35WSS_DR+WSS_DR-WSS_DL+WSS_DL-1314781617132189101115 1830APMV_DR_HLDPMV_DR_RELPMV_DR_CMNPMV_DL_HLDPMV_DL_RELPMV_DL_CMNPMV_SR_HLDPMV_SR_RELPMV_SR_CMNPM

3613 14 7 8 16 17 1 3 2 18 9 10 11 15 18 30A 10 13 9 16 17 12 47 6 12 3 1 11 14 5 8 12 15 11 14 2 34 7 6 5 8 10 13 9 15 5A X2 X2 5A X3 X3 X1 X1 3 21

37FIGURE 18 - BENDIX® EC‑80™ ATC WIRING SCHEMATIC (6S/5M)Troubleshooting: Bendix® EC-80™ ATC Wiring Schematic (6S/5M)* Pressure Modulator ValvesConnec

38NOTES

39GLOSSARYABS — Antilock Brake System.ABS Event — Impending wheel lock situation that causes the ABS controller to activate the modulator valve(s).ABS

4PLC controller and the Bendix EC‑80 ATC controller (12 volt versions) support PLC communications in accordance with SAE J2497.Identifying a Bendix EC

40APPENDIX: J1939 SPN and FMI Codes and their Bendix Blink Code EquivalentsSPN (J1939)FMI (J1939)GeneralBendix Blink Code Equivalent(s)Diagnostic Tro

41APPENDIX: J1939 SPN and FMI Codes and their Bendix Blink Code EquivalentsSPN (J1939)FMI (J1939)GeneralBendix Blink Code Equivalent(s)Diagnostic Tro

42APPENDIX: J1939 SPN and FMI Codes and their Bendix Blink Code EquivalentsSPN (J1939)FMI (J1939)GeneralBendix Blink Code Equivalent(s)Diagnostic Tro

43APPENDIX: J1939 SPN and FMI Codes and their Bendix Blink Code EquivalentsSPN (J1939)FMI (J1939)GeneralBendix Blink Code Equivalent(s)Diagnostic Tro

44BW2939 ©2014 Bendix Commercial Vehicle Systems LLC, a member of the Knorr‑Bremse Group • All Rights Reserved • 07/14

5Traction Control Valve (TCV) Bendix EC‑80 ATC controllers will activate the TCV during differential braking ATC events. The TCV may be a separate va

6The ABS Lamp Illuminates:1. During power‑up (e.g. when the vehicle is started) and turns off after the self‑test is completed, providing no Diagnost

7The ECU will illuminate the ATC indicator lamp whenever ATC is disabled due to a Diagnostic Trouble Code.Trailer ABS Indicator Lamp OperationCertain

8Normal BrakingDuring normal braking, brake pressure is delivered through the ABS PMV and into the brake chamber. If the ECU does not detect excessiv

93. During an ATC event (the lamp will ash rapidly at a rate of 2.5/second). When ATC is no longer active, the ATC active/indicator lamp turns off.