BENDIX EC-14 ANTILOCK CONTROLLER Manual page 22

START HERE
from Section VIII A
RESETTING
EC-14 ™
MAGNET
HERE
22
TROUBLESHOOTING
SECTION VIII PART B
TESTING THE WHEEL SPEED SENSOR
Same LEDs illuminated?
Ignition off. Remove connector from EC-14
Measure resistance between the appropriate speed
signal pins on the connector. Resistance for Bendix
™
WS-20 speed sensor is between 1500-2500 Ohms.
Refer to vehicle manual for the resistance values if
other than WS-20
Is the resistance correct?
Disconnect connector at speed sensor.
Inspect the connector, then check the
resistance between two pins on sensor.
Is resistance between 1500-2500 Ohms for
the Bendix
Reconnect connector at speed sensor and
EC-14 ™ controller. Pass magnet over "RESET" on
EC-14 ™ controller. Remove magnet and observe LEDs
Are any LEDs illuminated?
Are same red LEDs illuminated?
Repair or replace the speed
CONTROLLER
NO
™ speed sensor is in use.
NO
® ™
WS-20 speed sensor?
NO
YES
YES
sensor wiring harness
EC-14 ™ Controller Wire Harness Connector
3C
RT. REAR
2C
LFT. REAR
Testing Speed Sensor Resistance
YES
Go to Section IV "Inspection
for Illuminated LEDs"
™ controller.
®
YES
Replace the EC-14
YES
Replace the sensor
NO
Repeat the "Initial Start-up
Procedure"
NO
Repeat the "Initial Start-up
Procedure"
3H
3D LFT.
RT. REAR FRONT
3E 2H
LFT. REAR RT. FRONT
™
controller
3J
LFT. FRONT
3K
RT. FRONT