BENDIX EC-17 ANTILOCK TRACTION CONTROL Manual page 24

START HERE FROM
SECTION VI A
24
SECTION VI B - TESTING THE MODULATOR
GO TO MODULATOR, INSPECT WIRING CONNECTOR.
DISCONNECT CONNECTOR AND TEST RESISTANCE
BETWEEN PINS ON MODULATOR.
RESISTANCE VALUES FOR BENDIX
MODULATORS.
HOLD TO COMMON:
EXHAUST TO COMMON:
EXHAUST TO HOLD:
RESISTANCE VALUES FOR BENDIX
HOLD TO COMMON:
EXHAUST TO COMMON:
EXHAUST TO HOLD:
TEST EACH PIN TO VEHICLE GROUND WITH A MEG-
OHMMETER AND NOTE THAT NO CONTINUITY EXISTS.
RESISTANCE READINGS
CORRECT?
RECONNECT CONNECTOR TO MODULATOR.
TURN IGNITION ON AND PASS MAGNET OVER
RESET ON EC-17
REACTION OF RED LEDs.
ARE ANY RED LEDs
ILLUMINATED?
SAME RED LEDs
ILLUMINATED?
GO TO SECTION IV "INSPECTION FOR
ILLUMINATED LEDs" AND RETEST.
® M-21 ™ AND M-22 ™
READ 3.5 TO 5 OHMS
READ 3.5 TO 5 OHMS
READ 7 TO 10 OHMS
® ™
M-32 MODULATORS.
READ 4.9 TO 7 OHMS
READ 4.9 TO 7 OHMS
READ 9.8 TO 14 OHMS
NO
YES
™
CONTROLLER. NOTE
NO
YES
YES
NO
CONNECTOR ON M-21 ™ OR M-22
MODULATOR.
EXHAUST COMMON HOLD
A B
REPLACE THE MODULATOR.
REPEAT THE "INITIAL
START-UP PROCEDURE"
REPAIR OR REPLACE MODU-
LATOR WIRE HARNESS.
™
C