Bendix Commercial Vehicle Systems MC-11 TRACTOR ANTILOCK 4/04 - Manual (Page 16)

16
RECORD INDICATED
FAILURE. PERFORM
A RESET.
DISCONNECT THE 4-PIN
CONNECTOR BETWEEN THE
EC-11 ™ CONTROLLER AND THE
M-12 ™ MODULATOR SOLENOID
ASSEMBLY. CHECK RESISTANCE
ACROSS BOTH PAIRS OF WIRES.
(WHITE-WHITE, BLACK-BLACK)
CHECK FOR
SHORT-BLACK TO
CASE GROUND
AND WHITE TO
CASE GROUND
INTERMITTENT CONNECTION
BETWEEN EC-11
™ CONTROLLER
AND M-12 ™ MODULATOR.
CHECK 4-PIN CONNECTOR
REPLACE M-12 ™
MODULATOR
“MOD” LED
STAYS ON
REPEAT STARTUP
“MOD” LED
GOES OFF
STILL ON?
WHITE
BLACK
RESISTANCE
WITHIN 9.5-
11.5 OHMS
REPEAT STARTUP
REPLACE EC-11 ™
CONTROLLER
NO CONTINUITY
CONTINUITY
REPLACE M-12 ™
MODULATOR
RESISTANCE
OUTSIDE 9.5-
11.5 OHMS
TROUBLESHOOTING
SECTION V - TESTING MODULATOR
MAGNET HERE
TO RESET