BENDIX EC-13 TRAILER ANTILOCK CONTROL Скачать руководство пользователя страница 15

15

SAME RED LED’s 

ILLUMINATED?

NO

YES

YES

ARE ANY RED LED’s 

ILLUMINATED?

INSPECT CONNECTOR AND RECONNECT  

TO  EC-13

 CONTROLLER. TURN IGNITION 

ON AND PASS MAGNET OVER “RESET” ON 

EC-13

 CONTROLLER.  REMOVE MAGNET 

AND NOTE REACTION OF RED LEDS.

ARE RESISTANCE 
VALUES CORRECT?

YES

GO TO SECTION V 

B

 AND 

CONTINUE TESTING

NO

REPEAT  “INITIAL START-UP 

PROCEDURE”.  IF TESTING HAS 

RETURNED TO THIS STEP  TWICE - 

REPLACE THE EC-13

 CONTROLLER.

REPLACE EC-13

 

CONTROLLER

NO

GO TO  SECTION  III  

“INSPECTION FOR 

ILLUMINATED LEDS” 

AND RETEST.

IF FAILURE PERSISTS, 

REPLACE THE EC-13

 

CONTROLLER.

PROBE CONNECTOR WITH VOLT/OHM METER AND NOTE THAT 

PROPER RESISTANCE VALUES ARE OBTAINED FOR  

MODULATOR BEING TESTED. RESISTANCE VALUES HERE FOR A 

BENDIX

®

 M-12

 MODULATOR.  

FRONT MODULATOR

HOLD TO SOURCE (2G TO 1G):     

 

READ 9 TO 12 OHMS

EXHAUST TO SOURCE (2F TO 1G):     

READ 9 TO 12 OHMS

EXHAUST TO HOLD (2F TO 2G):    

 

READ 18 TO 24 OHMS

SOURCE TO POWER (1G TO 1K, 2K):   

NO CONTINUITY

SOURCE TO GROUND (1G TO 1A, 2A): 

NO CONTINUITY

REAR MODULATOR

HOLD TO SOURCE (1C TO 1D):     

 

READ 9 TO 12 OHMS

EXHAUST TO SOURCE (1B TO 1D):     

READ 9 TO 12 OHMS

EXHAUST TO HOLD (1B TO 1C):    

 

READ 18 TO 24 OHMS

SOURCE TO POWER (1D TO 1K, 2K):   

NO CONTINUITY

SOURCE TO GROUND (1D TO 1A, 2A): 

NO CONTINUITY

TURN IGNITION OFF. DISCONNECT

30 PIN WIRE HARNESS CONNECTOR 

FROM EC-13

 CONTROLLER.

START HERE

WIRE HARNESS CONNECTOR

2F

EXHAUST

2G

HOLD

1A, 2A

GROUND

1K, 2K

POWER

1G 

SOURCE

1C

HOLD

1B

EXHAUST

1D 

SOURCE

MAGNET HERE

RESETTING

EC-13

CONTROLLER

Troubleshooting

SECTION V PART A

TESTING THE MODULATOR

Содержание EC-13 TRAILER ANTILOCK CONTROL

Страница 1: ...cs display window with 9 light emitting diodes LEDs and a magnetically actuated reset switch is incorporated in the housing for troubleshooting and diagnostic purposes A single electrical connector is...

Страница 2: ...stop light switch The electrical ground for the EC 13 controller is from the 7 pin trailer connector and trailer chassis OUTPUTS Modulators like the Bendix M 12 and M 12R modulators are the means by...

Страница 3: ...elivers brake application pressure to the service chambers on each axle Two speed sensors on each axle report changes in acceleration and deceleration to the EC 13 controller If required the EC 13 con...

Страница 4: ...will attempt to provide the trailer with the best possible braking and stability even after a problem has occurred It should be remembered that the driver will be advised of any degraded antilock oper...

Страница 5: ...M 12R Modulator 1 M 12R Modulator FIGURE 5 TYPICAL MC 13 MODULATOR CONTROLLER TRAILER WIRING SCHEMATIC Trailer Wiring Harness Connector Connects to EC 13 Controller RIGHT TURN LIGHTS GRN Terminal Conn...

Страница 6: ...onents and kits Replacement hardware tubing hose fittings etc must be of equivalent size type and strength as original equipment and be designed specifically for such applications and systems 9 Compon...

Страница 7: ...the mechanic by a series of labeled light emitting diodes LEDs displayed through a window in the EC 13 controller housing No special tools or equipment are needed to read or interpret the EC 13 contro...

Страница 8: ...th either the FRONT or REAR LED SENS LED This red LED illuminates and latches ON to indicate permanent or intermittent problem The failures indicated are open or shorted wheel speed sensor open or sho...

Страница 9: ...trailer maintenance folder for future reference and comparison 2 No voltage or resistance tests are performed into the EC 13 controller All voltage and resistance tests are performed by beginning at...

Страница 10: ...KS ONCE THEN GOES OUT SYSTEM OK WITH TRAILER CONNECTED TO TRACTOR TURN IGNITION ON APPLY TRAILER SERVICE BRAKES AND OBSERVE STATUS LAMP MOUNTED ON TRAILER NO DID STATUS LAMP ILLUMINATE GO TO SECTION I...

Страница 11: ...N THE ORDER PRESENTED AND AFTER REPLACING OR TESTING EACH COMPONENT TEST THE STATUS LAMP OPERATION 1 CHANGE TRAILER STATUS LAMP BULB 2 CHECK TRAILER STATUS LAMP WIRING GROUND 3 CHECK CONTINUITY OF WAR...

Страница 12: ...S GREEN LED FLASHING NO ARE ANY RED LED s ILLUMINATED YES NO YES GO TO SECTION IV TESTING FOR POWER TO THE EC 13 CONTROLLER NOTE AND RECORD THE CONDITION OF ALL RED LEDS GO TO SECTION III INSPECTION F...

Страница 13: ...R YES NOTE RED ECU LED IN EC 13 CONTROLLER DIAGNOSTICS WINDOW START HERE NO NO IS THE RED RIGHT OR LEFT LED ILLUMINATED SEE NOTE 1 BELOW IS THE RED FRONT OR REAR LED ILLUMINATED SEE NOTE 1 BELOW ON SE...

Страница 14: ...REPEAT THE INITIAL START UP PROCEDURE YES REPLACE EC 13 CONTROLLER REPEAT THE INITIAL START UP PROCEDURE CHECKING VOLT LED ON OR FLASHING YES NO RESETTING EC 13 CONTROLLER MAGNET HERE PERFORM A MAGNET...

Страница 15: ...ED FOR MODULATOR BEING TESTED RESISTANCE VALUES HERE FOR A BENDIX M 12 MODULATOR FRONT MODULATOR HOLD TO SOURCE 2G TO 1G READ 9 TO 12 OHMS EXHAUST TO SOURCE 2F TO 1G READ 9 TO 12 OHMS EXHAUST TO HOLD...

Страница 16: ...TROLLER NO YES YES NO NO YES RECONNECT EC 13 CONTROLLER TO M 12 MODULATOR TURN IGNITION ON AND PASS MAGNET OVER RESET ON EC 14 CONTROLLER AND REMOVE NOTE REACTION OF RED LEDS START HERE TURN THE IGNIT...

Страница 17: ...GAP IS CORRECT CHECK WHEEL BEARING FOR FREE PLAY TO VERIFY IT COMPLIES TO MANUFACTURER S RECOMMENDATIONS D MAKE CERTAIN EXCITER OR TONE RING IS IN PLACE AND INSPECT CONDITION CHECK FOR MISSING OR DAM...

Страница 18: ...GO TO SECTION III INSPEC TION FOR ILLUMINATED LED s SAME LED s ILLUMINATED NO YES RECONNECT CONNECTOR AT SPEED SENSOR AND EC 13 CONTROLLER PASS MAGNET OVER RESET ON EC 13 CONTROLLER REMOVE MAGNET AND...

Страница 19: ...19...

Страница 20: ...20 BW1823 2007 Bendix Commercial Vehicle Systems LLC All rights reserved 8 07 Printed in U S A...

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