1®MOUNTINGHOLES(4)SD-13-4787Bendix® EC-16™ AntiLock - Traction Controller18 PINCONNECTOR30 PINCONNECTORDIAGNOSTICDISPLAYFIGURE 1 - EC-16™ CONTROLLERDE

104. Remove as much contamination as possible from theassembly's exterior. Keep the contamination away fromthe open ports.5. Note and mark the po

11FRT Red LEDMID Red LED (See Note)RER Red LEDRHT Red LEDLFT Red LEDTRC Red LEDMOD Red LEDSEN Red LEDECU Red LEDVLT Green LEDRESET + No LEDNote: The M

12ANTILOCK LAMP LAMP ON LAMP OFF LAMP ON LAMP OFF LAMP ON1ST TIME 1ST TIME 2ND TIME 2ND TIME STAYS ONTraction Lamp(EC-16™ controller w/torquelimiting

136. All or part of traction control can be lost during selfconfiguration by;A. Not connecting one of the wire harnesses (enginecontrol module for tor

14TROUBLESHOOTINGIMPORTANT BEFORE TROUBLESHOOTING:1. Determine if the vehicle is equipped with traction control.The presence of a traction condition l

15ON - GO TOSECTION XION - GO TOSECTION XIION(NOT FLASHING)ONE ORMORE ONGO TOSECTION IVONE FROM THISGROUP ONONE FROM THISGROUP ONON - GO TO SECTION VI

16TURN IGNITION ON ANDOBSERVE DASH ANTILOCKLAMP.0DID ANTILOCK DASH LAMP BLINK?IS ANTILOCK DASH LAMPSTILL ILLUMINATED?YESYESGO TO SECTION III “INSPE

17SECTION I - ANTILOCK DASH LAMP TESTINGYESNOCHECK WIRING HARNESS AND RELAY FORSHORTS TO GROUND. RECONNECT ANDCHECK/REPLACE THE FOLLOWING:1. DASH LIG

18SECTION II - INSPECTION FOR ILLUMINATED LEDsCHECK CLOSELY ANDNOTE IF GREEN, VLTLED IS ILLUMINATEDNO (OFF)YESNOYES (ON)GO TO SECTION V“TESTING FOR

19SECTION III - INSPECTION FOR ILLUMINATED LEDsIS GREEN LED FLASHING?YESNOYESGO TO SECTION IX “TESTING FOR FALSEFAILURE INDICATION - CAUSED BYWHEEL

2TRACTION ENABLE SWITCHANTILOCK LAMPRETARDER DISABLE SWITCHBATTERYENGINE ELECTRONICCONTROL MODULEM-21™ OR M-22™MODULATORSQUICKRELEASEVALVESERVICE BRAK

20SECTION IV - INSPECTION FOR ILLUMINATED LEDsTHERE SHOULD BE A MINIMUM OFTHREE RED LEDs ILLUMINATED ANDOF THE THREE THERE MUST BE A “RHT”OR “LFT”, PL

21SECTION V - TESTING FOR POWER TO THE EC-16™ CONTROLLERVOLTAGE SAME AS BATTERYVOLTAGE. MUST BEBETWEEN 11 AND 17 VOLTS.NOYESRECONNECT CONNECTOR TO E

22SECTION VI A - TESTING THE MODULATORINSPECT CONNECTOR AND RECONNECT TOEC-16™ CONTROLLER. TURN IGNITION ON ANDPASS MAGNET OVER RESET ON EC-16™CONTRO

23SECTION VI B - TESTING THE MODULATORGO TO MODULATOR, INSPECT WIRING CONNECTOR.DISCONNECT CONNECTOR AND TEST RESISTANCEBETWEEN PINS ON MODULATOR.

24SECTION VII A - TESTING THE WHEEL SPEED SENSORSTART HEREIGNITION ON, NOTE ILLUMINATED LED's.DO MAGNETIC RESET, NOTE REACTION OF RED LEDs.2nd TI

25SECTION VII B - TESTING THE WHEEL SPEED SENSORSTART HERE FROMSECTION VII AGO TO SECTION III "INSPECTIONFOR ILLUMINATED LEDs"SAME LEDs IL

26SECTION VIII - TESTING FOR FALSE INDICATION CAUSED BY DASH LIGHT RELAYIS CONTINUITY DETECTED?REPAIR OR REPLACE WIRE HARNESS,RECONNECT EC-16™ CONTRO

27SECTION IX - TESTING FOR FALSE INDICATION CAUSED BY WHEEL SPEED COMPONENTSSTART HERENOYESRUN VEHICLE AT 7 MPH OR MOREFOR 5 SECONDS OR MORE. TURNOF

28SECTION X - TESTING TRACTION CONTROL DASH LAMPNOYESREPLACE EC-16™CONTROLLERYESNO123C2K J H G F E D C B AREPAIR OR REPLACE WIREHARNESS AND RETESTVEHI

29SECTION XI - TESTING TRACTION CONTROL MODULATORARE "TRC" AND "MOD"LEDs ON?START HEREThese LEDsIlluminated?123F E D C B A18 PIN C

3contained in the section entitled "Configuring The EC-16™Controller".In order to provide full vehicle wheel control antilock, theEC-16™ con

30SECTION XII- TESTING ENGINE CONTROL MODULE WIRE HARNESSTRC ONLY RED LED ON?PASS MAGNET OVER EC-16™CONTROLLER RESET & REPEAT"INITIAL START-U

31

32BW1726 © 2004 Bendix Commercial Vehicle Systems LLC All rights reserved. 6/2004 Printed in U.S.A.

4RelayRelaySee Lamp Relayinset belowSee Retarder Relayinset belowF E D C B A123A1 RIGHT REAR MOD. COMMONA2 FUTURE RELAY GRD.A3 AUXILIARY OUTPUTB1 RIGH

5EC-16™ controller in the form of an AC signal which varies involtage and frequency as the speed of the wheel increasesor decreases. The EC-16™ contro

6If the EC-16™ controller is programmed for traction control,it contains the following outputs:- A connection to the engine's electronic control

7TRACTION CONTROL AT VEHICLE SPEEDSABOVE 25 MPHIf wheel spin occurs at any speed above 25 mph, theEC-16™ controller will instantly blink the traction

8Mid or rear sensor - Antilock on that wheel is disabled, butantilock on all other wheels remains active. Traction controlis disabled.Controller - Ant

9PREVENTIVE MAINTENANCEEvery 3 months; 25,000 miles; or 900 operating hours;1. Check all wiring and connectors to ensure they aresecure and free from