Mitsubishi 380. Instruction - page 64
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-253
STEP 3. Check the input signal by using "FUNCTION
DIAG." menu of the SWS monitor.
Check the input signals from the following switches:
• Ignition switch: ACC
• Windshield washer switch: ON
(1) Operate the Diagnostic Tool MB991958 according to the
procedure below to display "F.WIPER WASH."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "SWS MONITOR."
e. Select "Function Diag."
f.
Select "WIPER."
g. Select "F.WIPER WASH."
(2) Check that normal conditions are displayed for the items
described in the table below.
Q: Are normal conditions displayed for "FRONT
WASH.SW" and "FRONT ECU ACK"?
Normal conditions displayed for all the items : Go to
Step 4.
Normal condition is not displayed for the "FRONT
WASH.SW" : Replace the column switch. Verify that the
windshield washer works normally.
Normal condition is not displayed for the "FRONT ECU
ACK" : Replace the front-ECU. Verify that the windshield
washer works normally.
STEP 4. Check windshield washer motor connector A-29
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is windshield washer motor connector A-29 in good
condition?
YES : Go to Step 5.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2
. Verify that the windshield washer works
normally.
ITEM NO.
ITEM NAME
NORMAL
CONDITION
ITEM 09
FRONT WASH.SW ON
ITEM 70
FRONT ECU ACK
NORMAL ACK or
HI-BEAM ACK
00DB076A
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
AC302210
COLUMN SWITCH
CONNECTOR
COLUMN SWITCH
CONNECTOR AT
HARNESS SIDE
MB991812
AB
16DB430A
CONNECTOR: A-29
HARNESS SIDE
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-254
STEP 5. Check the windshield washer motor.
(1) Disconnect windshield washer motor connector A-29, and
check at windshield washer motor connector side.
(2) Fill the windshield washer tank with washer fluid.
(3) When battery voltage is applied between terminals 1 and 2,
washer fluid should spray out.
Q: Does the windshield washer motor operate normally?
YES : Go to Step 6.
NO : Replace the windshield washer motor. Verify that the
windshield washer works normally.
16DB430A
CONNECTOR: A-29
HARNESS SIDE
16DB431A
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-255
STEP 6. Check the ground circuit to the windshield washer
motor. Measure the resistance at the windshield washer
motor connector A-29.
(1) Disconnect windshield washer motor connector A-29 and
measure the resistance available at the wiring harness side
of the connector.
(2) Measure the resistance value between terminal 1 and
ground.
• The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 8.
NO : Go to Step 7.
STEP 7. Check the wiring harness between windshield
washer motor connector A-29 (terminal 1) and ground.
Q: Is the wiring harness between windshield washer motor
connector A-29 (terminal 1) and ground in good
condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. Verify that
the windshield washer works normally.
STEP 8. Check front-ECU connector A-12X for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is front-ECU connector A-12X in good condition?
YES : Go to Step 9.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2
. Verify that the windshield washer works
normally.
16DB430A
CONNECTOR: A-29
HARNESS SIDE
16DB432A
CONNECTOR A-29
(HARNESS SIDE)
16DB430A
CONNECTOR: A-29
HARNESS SIDE
AC305977
CONNCTOR: A-12X
AI
21
22
23
24
25
26
27
28
29
30
31
RELAY BOX SIDE
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-256
STEP 9. Check the wiring harness between windshield
washer motor connector A-29 (terminal 2) and front-ECU
connector A-12X (terminal 31).
Q: Is the wiring harness between windshield washer motor
connector A-29 (terminal 2) and front-ECU connector
A-12X (terminal 31) in good condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. Verify that
the windshield washer works normally.
AC305977
CONNCTOR: A-12X
AI
21
22
23
24
25
26
27
28
29
30
31
RELAY BOX SIDE
16DB430A
CONNECTOR: A-29
HARNESS SIDE