BENDIX EC-16 ANTILOCK CONTROLLER Manual page 17

SECTION I - ANTILOCK DASH LAMP TESTING
START HERE
PINS E3 & A1, A2, A3. VOLTAGE SHOULD BE SAME AS
GROUND
GROUND
GROUND
E3
TO DASH LAMP
RELAY
DISCONNECT 30 PIN CONNECTOR FROM
EC-16 ™ CONTROLLER AND OBSERVE THE
ANTILOCK DASH LAMP.
ANTILOCK DASH LAMP
ILLUMINATED?
NO
WITH IGNITION ON, MEASURE VOLTAGE BETWEEN
BATTERY VOLTAGE
A1
IS VOLTAGE CORRECT?
A2
A3
YES
CHECK WIRING HARNESS AND RELAY FOR
SHORTS TO GROUND. RECONNECT AND
CHECK/REPLACE THE FOLLOWING:
1. DASH LIGHT BULB
2. FUSE
3. RELAY POWER WIRE
4. RELAY
AFTER REPLACING EACH COMPONENT TEST
THE DASH LAMP.
REPEAT THE "INITIAL
START-UP PROCEDURE"
YES
REPLACE THE EC-16
CONTROLLER
NO
SECOND TIME TO
THIS POINT?
YES
REPAIR OR REPLACE WIRE
A1, A2, A3
GROUND
VEHICLE POWER
™
REPLACE RELAY &
NO
RETEST FOR BATTERY
VOLTAGE
HARNESS
E3
DASH LAMP
TO DASH LAMP
RELAY
RELAY
DASH LAMP
(IGNITION)
17