Bendix Commercial Vehicle Systems EC-13 TRAILER ANTILOCK CONTROL 8/07 - Manual (Page 13)

13
Troubleshooting
SECTION III
INSPECTION FOR ILLUMINATED LEDS
NO
IS RED “SENS” LED
ILLUMINATED?
NOTE THE THREE
ILLUMINATED LEDS AND
GO TO SECTION VI
“TESTING THE WHEEL
SPEED SENSOR”
REPLACE THE EC-13 ™
CONTROLLER AND
REPEAT THE “INITIAL
START-UP PROCEDURE”
YES
IS THE RED “FRONT”
OR “REAR” LED
ILLUMINATED?
SEE NOTE 1 BELOW
NO
YES
NO
NO YES
YES
IS RED “MOD” LED
ILLUMINATED?
YES
YES NO
IS THIS LED ILLUMINATED?
GO TO SECTION IV “TESTING
FOR POWER TO THE EC-13 ™
CONTROLLER”.
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
SEE NOTE 1
SEE NOTE 1
SEE NOTE 1
SEE NOTE 2
ON
IS THE RED “RIGHT”
OR “LEFT” LED
ILLUMINATED?
SEE NOTE 2 BELOW
TESTING “MOD”
LED
TESTING “SENS”
LED
INSPECTING “ECU”
LED
IF ANY OTHER RED
LEDs ARE ILLUMINATED,
REPLACE THE EC-13 ™
CONTROLLER AND
REPEAT THE “INITIAL
START-UP PROCEDURE”
GO TO SECTION V
“TESTING THE
MODULATOR”
NOTES:
1. IF BOTH OF THESE LEDs ARE ILLUMINATED,
REPLACE THE EC-13 ™ CONTROLLER
2. IF EITHER OF THESE LEDs ARE ILLUMINATED,
REPLACE THE EC-13 ™ CONTROLLER
ON?