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15
SAME RED LED’s
ILLUMINATED?
NO
YES
YES
ARE ANY RED LED’s
ILLUMINATED?
INSPECT CONNECTOR AND RECONNECT
TO EC-13
™
CONTROLLER. TURN IGNITION
ON AND PASS MAGNET OVER “RESET” ON
EC-13
™
CONTROLLER. REMOVE MAGNET
AND NOTE REACTION OF RED LEDS.
ARE RESISTANCE
VALUES CORRECT?
YES
GO TO SECTION V
B
AND
CONTINUE TESTING
NO
REPEAT “INITIAL START-UP
PROCEDURE”. IF TESTING HAS
RETURNED TO THIS STEP TWICE -
REPLACE THE EC-13
™
CONTROLLER.
REPLACE EC-13
™
CONTROLLER
NO
GO TO SECTION III
“INSPECTION FOR
ILLUMINATED LEDS”
AND RETEST.
IF FAILURE PERSISTS,
REPLACE THE EC-13
™
CONTROLLER.
PROBE CONNECTOR WITH VOLT/OHM METER AND NOTE THAT
PROPER RESISTANCE VALUES ARE OBTAINED FOR
MODULATOR BEING TESTED. RESISTANCE VALUES HERE FOR A
BENDIX
®
M-12
™
MODULATOR.
FRONT MODULATOR
HOLD TO SOURCE (2G TO 1G):
READ 9 TO 12 OHMS
EXHAUST TO SOURCE (2F TO 1G):
READ 9 TO 12 OHMS
EXHAUST TO HOLD (2F TO 2G):
READ 18 TO 24 OHMS
SOURCE TO POWER (1G TO 1K, 2K):
NO CONTINUITY
SOURCE TO GROUND (1G TO 1A, 2A):
NO CONTINUITY
REAR MODULATOR
HOLD TO SOURCE (1C TO 1D):
READ 9 TO 12 OHMS
EXHAUST TO SOURCE (1B TO 1D):
READ 9 TO 12 OHMS
EXHAUST TO HOLD (1B TO 1C):
READ 18 TO 24 OHMS
SOURCE TO POWER (1D TO 1K, 2K):
NO CONTINUITY
SOURCE TO GROUND (1D TO 1A, 2A):
NO CONTINUITY
TURN IGNITION OFF. DISCONNECT
30 PIN WIRE HARNESS CONNECTOR
FROM EC-13
™
CONTROLLER.
START HERE
WIRE HARNESS CONNECTOR
2F
EXHAUST
2G
HOLD
1A, 2A
GROUND
1K, 2K
POWER
1G
SOURCE
1C
HOLD
1B
EXHAUST
1D
SOURCE
MAGNET HERE
RESETTING
EC-13
™
CONTROLLER
Troubleshooting
SECTION V PART A
TESTING THE MODULATOR
Содержание EC-13 TRAILER ANTILOCK CONTROL
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