Troubleshooting – Bendix Commercial Vehicle Systems MC-11 TRACTOR ANTILOCK 4/04 User Manual

Page 19

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19

HOLD A MAGNET TO THE RESET SWITCH AND MAKE SURE
ALL LEDS ILLUMINATE WHEN MAGNET IS PRESENT

REPEAT STARTUP, IF TESTING
RETURNS TO THIS PLACE TWICE,
REPLACE THE EC-11

CONTROLLER

CHECK FOR OUT-OF-SPEC
SENSOR GAPS (SHOULD BE
0-.015”)

REPAIR/REPLACE
AS NECESSARY.

BOTH SENSORS MAY
NOT BE RECEIVING
SIGNALS.

YES

HOLD MAGNET
HERE TO RESET

REMOVE MAGNET

REMOVE MAGNET

NO

ALL LEDS

SHOULD

BE ON

TONE RINGS PRESENT AND
IN GOOD CONDITION

REPLACE EC-11

CONTROLLER

REPEAT STARTUP

CHECK FOR PRESENCE
OF TONE RINGS.

TONE RINGS NOT PRESENT OR
DAMAGED

ADJUST AS
NECESSARY

REPEAT STARTUP

GAP OUT

OF SPEC

GAP OK

LEDS ILLUMINATED?

TROUBLESHOOTING

SECTION VII - FALSE FAILURE INDICATION

NOTE: IF DURING STARTUP, THE DASH LIGHT ILLUMINATED WITHOUT BLINKING,

GO TO SECTION VII PART B - TESTING FOR FALSE FAILURE CAUSED BY DASH

LIGHT RELAY. I F THE DASH LIGHT BLINKED DURING STARTUP BUT ILLUMINATED

AFTER THE VEHICLE REACHED 10 MPH, GO TO SECTION VII PART A - TESTING

FOR FALSE FAILURE CAUSED BY WHEEL SPEED COMPONENTS.

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