TM 9-2320-387-24-l
lNSTR”MENTS ClilculTl
653
TEsT omoNIAGNOSTIC
FLOWCHART
I
KNOWN INFO
POWER TO WIPER
MOTOR
DISCONNECT SWITCH WIRING FROM
MOTOR ASSEMBLY. WITH SWITCH IN
THE OFF POSITION, DO YOU HAVE
CONTINUITY FROM INPUT
CONNECTOR (BATTERY) AND
SOCKET 4? YOU SHOULD ALSO
HAVE CONTINUITY BElWEEN
PIN 2
AND SOCKET 3.
MULTtMETER
I-
POSSIBLE PROBLEMS
WIPER MOTOR
WIRING
L
KNOWN INFO
POWER TO WIPER
MOTOR
POSSIBLE PROBLEMS
WIPER MOTOR
WIRING
i
REASON FOR OUESTlON
This will determine if switch is
defective.
WITH SWITCH IN THE LOW SPEED
POSITION, DO YOU HAVE
CONTlNUlTY
FROM INPUT
CONNECTOR (BAmRY)
TO PIN 2?
WITH THE SWITCH IN THE HIGH
SPEED POSITION, CONTINUITY
SHOULD EXIST BETWEEN INPUT
CONNECTOR (BATTERY) AND PIN 1.
T OPTlONS
MULTlMEiER
REASON FOR QUESTldN
This will determine if switch
is defective.
I
REPLACE WlPER
WITH SWITCH DEPRESSED FOR THE
PUSH-TO-WASH OPERATION,
CONTINUITY SHOULD EXIST
BETWEEN THE INPUT CONNECTOR
(BAlTERY)
AND WASH TERMINAL.
MULTlMETER
2-336
