BENDIX EC-16 ANTILOCK CONTROLLER Manual page 22

TURN IGNITION OFF. REFER TO
ILLUSTRATION, DISCONNECT WIRE
HARNESS CONNECTOR FROM
EC-16 ™
PROBE CONNECTOR WITH VOLT/OHM METER AND NOTE THAT
PROPER RESISTANCE VALUES ARE OBTAINED FOR MODULA-
TOR BEING TESTED. RESISTANCE VALUES HERE FOR BENDIX
M-21 ™ MODULATOR.
HOLD TO COMMON:
EXHAUST TO COMMON:
EXHAUST TO HOLD:
COMMON TO GROUND:
HOLD TO BATTERY POWER:
HOLD TO GROUND:
EXHAUST TO GROUND:
ARE RESISTANCE
VALUES CORRECT?
GO TO SECTION VI B AND
CONTINUE TESTING
22
SECTION VI A - TESTING THE MODULATOR
CONTROLLER.
READ 3.5 TO 5 OHMS
READ 3.5 TO 5 OHMS
READ 7 TO 10 OHMS
NO CONTINUITY
NO CONTINUITY
NO CONTINUITY
NO CONTINUITY
YES
NO
START HERE
18 PIN CONNECTOR
1
®
2
3
F E D
F1 LEFT REAR MOD. COMMON
D1 LEFT REAR MOD. EXHAUST
E1 LEFT REAR MOD. HOLD
A1 RIGHT REAR MOD. COMMON
C1 RIGHT REAR MOD. EXHAUST
B1 RIGHT REAR MOD. HOLD
INSPECT CONNECTOR AND RECONNECT TO
EC-16 ™ CONTROLLER. TURN IGNITION ON AND
PASS MAGNET OVER RESET ON EC-16
CONTROLLER. NOTE REACTION OF RED LEDs.
ARE ANY RED LEDs
ILLUMINATED?
YES
SAME RED LEDs
ILLUMINATED?
NO
GO TO SECTION IV
"INSPECTION FOR
ILLUMINATED LEDs"
AND RETEST.
30 PIN CONNECTOR
C B A K J H G F
H1 LEFT FRONT MOD. COMMON
F1 LEFT FRONT MOD. EXHAUST
G1 LEFT FRONT MOD. HOLD
C1 RIGHT FRONT MOD. COMMON
E1 RIGHT FRONT MOD. EXHAUST
D1 RIGHT FRONT MOD. HOLD
™
REPEAT "INITIAL START-UP
NO
PROCEDURE." IF THIS TEST STEP
HAS REPEATED TWICE - REPLACE
™
THE EC-16 CONTROLLER.
YES
REPLACE THE EC-16
CONTROLLER.
1
2
3
E D C B A
™