Bendix Commercial Vehicle Systems EC-14 ANTILOCK CONTROLLER 5/04 - Manual (Page 20)

20
TROUBLESHOOTING
SECTION VII
TESTING FOR THE REAR (M-12 ™ ) MODULATOR
Is resistance in range?
Replace the M-12 ™ modulator
solenoid assembly
NO
Are any red LEDs
illuminated?
Repeat the “Initial
Start-up Procedure”
Are same red LEDs
illuminated?
YES
NO
Go to Section IV
“Inspection for Illuminated
Red LEDs”
YES
NO
RESETTING
EC-14 ™ CONTROLLER
MAGNET
HERE
YES
START HERE
Turn the ignition off. Separate the EC-14 ™ controller
from the M-12 ™ modulator. Disconnect the four pin
connector between the two components and test
resistance on the modulator connector.
Black to black: ........................................ 9 to 12 Ohms
White to white: ....................................... 9 to 12 Ohms
Reconnect EC-14 ™ controller to M-12 ™
modulator. Turn ignition on and pass magnet
over “RESET” on EC-14 ™ controller and
remove. Note reaction of red LEDs
Replace EC-14 ™ controller.
Repeat the “Initial Start-up
Procedure.”
WHITE
WHITE
BLACK
BLACK
M-12 ™ MODULATOR
WIRE HARNESS
CONNECTOR