BENDIX SD-13-4788 Manual de usuario Pagina 1

1SD-13-4788DESCRIPTIONGENERALThe EC-17™ is an electronic antilock controller. It is the base component in a family of full vehicle wheel control antil

109. Components with stripped threads or damaged parts should be replaced rather than repaired. Do not attempt repairs requiring machining or welding

11* Windows is a registered trademark of Microsoft Corporation.Separate dash lamps, controlled by the EC-17™/EC-17N™controller, advise the driver of t

12and procedures presented in this manual can be used. When connected to a PC, use the instructions and documentation packaged with the DCI to trouble

13“RER” (Rear) LEDThis Red LED illuminates in order to indicate the location of a component or its wiring. It will light in conjunction with either th

14EC-17™ CONTROLLER SELF CONFIGURING PROCESSImportant General Information: 1. Three aspects of the antilock and traction system are infl uenced by the

152. If the vehicle is to be confi gured with traction control, it must have a traction control dash lamp and a traction control enable/disable switch

16GO TO SECTION IVON(NOT FLASHING) ONE OR MORE ON ONE FROM THIS GROUP ONONE FROM THIS GROUP ONON - GO TO SECTION VI A ON - GO TO SECTION VII A ONE F

17TURN IGNITION ON AND OBSERVE DASH ANTILOCK LAMP. DID ANTILOCK DASH LAMP BLINK?IS ANTILOCK DASH LAMPSTILL ILLUMINATED?YESYESGO TO SECTION III “INS

18SECTION I - ANTILOCK DASH LAMP TESTINGYESNOCHECK WIRING HARNESS AND RELAY FOR SHORTS TO GROUND. RECONNECT AND CHECK/REPLACE THE FOLLOWING: 1. DASH

19SECTION II - INSPECTION FOR ILLUMINATED LEDs CHECK CLOSELY AND NOTE IF GREEN, VLTLED IS ILLUMINATEDNO (OFF)YESNOYES (ON)GO TO SECTION V “TESTING FOR

2FIGURE 2 - EC-17™ ANTILOCK TRACTION CONTROLLER SYSTEM SCHEMATICTRACTION ENABLE SWITCHANTILOCK LAMPRETARDER DISABLE SWITCHBATTERYENGINE ELECTRONIC CON

20SECTION III - INSPECTION FOR ILLUMINATED LEDsIS GREEN LED FLASHING?YESNOYESGO TO SECTION IX “TESTING FOR FALSE FAILURE INDICATION - CAUSED BY WHEEL

21SECTION IV - INSPECTION FOR ILLUMINATED LEDsTHERE SHOULD BE A MINIMUM OF THREE RED LEDs ILLUMINATED AND OF THE THREE THERE MUST BE A “RHT” OR “LFT”,

22SECTION V - TESTING FOR POWER TO THE EC-17™ CONTROLLERVOLTAGE SAME AS BATTERY VOLTAGE. MUST BE BETWEEN 11 AND 17 VOLTS. NOYESRECONNECT CONNECTOR T

23SECTION VI A - TESTING THE MODULATORF E D C B A123K J H G F E D C B AH1 LEFT FRONT MOD. COMMONF1 LEFT FRONT MOD. EXHAUSTG1 LEFT FRONT MOD. HO

24SECTION VI B - TESTING THE MODULATORGO TO MODULATOR, INSPECT WIRING CONNECTOR. DISCONNECT CONNECTOR AND TEST RESISTANCE BETWEEN PINS ON MODULATOR. R

25SECTION VII A - TESTING THE WHEEL SPEED SENSORSTART HEREIGNITION ON, NOTE ILLUMINATED LED’s.RESET WITH A MAGNET, NOTE REACTION OF RED LEDs.2nd TIME

26SECTION VII B - TESTING THE WHEEL SPEED SENSORSTART HERE FROM SECTION VII AGO TO SECTION III “INSPECTION FOR ILLUMINATED LEDs” SAME LEDs ILLUMINATED

27SECTION VIII - TESTING FOR FALSE INDICATION CAUSED BY DASH LIGHT RELAYIS THE ABS INDICATOR LAMP ILLUMINATED?NOYESYESCHECK THE DASH AND VEHICLE WIRIN

28SECTION IX - TESTING FOR FALSE INDICATION CAUSED BY WHEEL SPEED COMPONENTSSTART HERENOYESRUN VEHICLE AT 7 MPH OR MORE FOR 10 SECONDS OR MORE. TURN O

29SECTION X - TESTING TRACTION CONTROL DASH LAMPNOYESREPLACE EC-17™CONTROLLERYESNO123C2K J H G F E D C B AREPAIR OR REPLACE WIRE HARNESS

3When programmed to provide traction control in addition to antilock, the following components are added: - One traction solenoid (incorporated int

30SECTION XI - TESTING TRACTION CONTROL MODULATORARE “TRC” AND “MOD” LEDs ON?START HEREThese LEDs Illuminated?123F E D C B A18 PIN CONNECT

31SECTION XII - TESTING ENGINE CONTROL MODULE WIRE HARNESSTRC ONLY RED LED ON?PASS MAGNET OVER EC-17™CONTROLLER RESET & REPEAT “INITIAL START-UP P

32BW1910 © 2010 Bendix Commercial Vehicle Systems LLC All rights reserved. 4/2010 Printed in U.S.A.

4FIGURE 5 - EC-17™ ANTILOCK TRACTION CONTROLLER SYSTEM WIRING SCHEMATICNote: M -21™ and M-22™ modulators are shown in the diagrams in this document —

5drive axles (6 x 4) requires 4 speed sensors for antilock only operation, but have the option to use 6 speed sensors for enhanced performance of both

6If the EC-17™ controller is programmed for traction control, it contains the following outputs: - A connection to the engine’s electronic control mo

7condition, each method provides a unique and desirable type of wheel spin control. Ideally both methods are used to control vehicle traction. While a

8AUTO CALIBRATIONFor optional ATC performance the ECU utilizes a feature referred to as auto calibration. Auto calibration allows the ECU to compensat

9ANTILOCK AND TRACTION WIRING GENERAL NOTES The wires that carry information and power into and out of the EC-17™ controller are generally grouped and