Bendix Commercial Vehicle Systems MC-11 TRACTOR ANTILOCK 4/04 - Manual (Page 17)

17
RECORD INDICATED
FAILURE
MEASURE RESISTANCE AT
THE PROPER PIN
LOCATIONS ON THE 14-PIN
CONNECTOR.
(“SNS 1” - PINS N AND P.
“SNS 2” - PINS L AND M.)
GO TO SECTION
VI - PART B
IF THE OTHER “SNS” LED
ILLUMINATES, A GOOD
SENSOR WAS
DISCONNECTED.
RECONNECT IT AND TEST
THE OTHER SENSOR.
INSPECT FOR BROKEN OR
CRIMPED WIRES LEADING
TO THE PROBLEM SENSOR.
CLEAN CONTACTS AT THE
SENSOR AND ITS
CONNECTOR.
CHECK FOR
PRESENCE OF TONE
RING OR MISSING
TONE RING TEETH
YES
CHECK FOR OUT-OF-
SPEC SENSOR GAP
(SHOULD BE 0-.015”)
IF THE OTHER “SNS”
LED DOES NOT
ILLUMINATE, THE
PROBLEM SENSOR
WAS DISCONNECTED.
OPEN CONNECTOR
FOR EACH SENSOR
AND OBSERVE LEDS.
NO
CHECK FOR
EXCESSIVE WHEEL
BEARING FREE PLAY
PERFORM A RESET.
ANY “SNS” LEDS ON?
REPEAT STARTUP
SNS 1
SNS 2
TROUBLESHOOTING
SECTION VI PART A - TESTING WHEEL SPEED SENSOR
STILL ON?
MAGNET HERE
TO RESET