Mitsubishi Galant 9G. Manual — part 67

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-264

STEP 5. Check the ground circuit to the windshield wiper
motor. Measure the resistance at the windshield wiper
motor connector A-03.
(1) Disconnect windshield wiper motor connector A-03 and

measure the resistance available at the wiring harness side
of the connector.

(2) Measure the resistance value between terminal 5 and

ground.

• The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 7.
NO : Go to Step 6.

STEP 6. Check the wiring harness between windshield
wiper motor connector A-03 (terminal 5) and ground.
Q: Is the wiring harness between windshield wiper motor

connector A-03 (terminal 5) 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 the
windshield wiper works normally.

STEP 7. 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 8.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. Verify that the windshield wiper works

normally.

AC305206

A-03 (B)

HARNESS SIDE

CONNECTOR: A-03

AH

AC209364CV

CONNECTOR A-03
(HARNESS SIDE)

4

5

2

3

1

AC305206

A-03 (B)

HARNESS SIDE

CONNECTOR: A-03

AH

AC305977

CONNCTOR: A-12X

AI

21

22

23

24

25

26

27

28

29

30

31

RELAY BOX SIDE

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-265

STEP 8. Check the ignition switch (ACC) circuit to the
front-ECU. Measure the voltage at front-ECU connector
A-12X.
(1) Disconnect front-ECU connector A-12X and measure the

resistance available at the relay box side of the connector.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 28 and ground.

• The voltage should measure approximately 12 volts

(battery positive voltage).

Q: Is the measured voltage approximately 12 volts (battery

positive voltage)?
YES :
Replace the front-ECU. Verify that the windshield

wiper works normally.

NO : Go to Step 9.

STEP 9. Check the wiring harness between front-ECU
connector A-12X (terminal 28) and the ignition switch
(ACC).

AC305977

CONNCTOR: A-12X

AI

21

22

23

24

25

26

27

28

29

30

31

RELAY BOX SIDE

AC209364CU

CONNECTOR A-12X
(RELAY BOX SIDE)

24

29

30

31

28 27

25

26

21

23 22

AC305977

CONNCTOR: A-12X

AI

21

22

23

24

25

26

27

28

29

30

31

RELAY BOX SIDE

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-266

NOTE: Also check intermediate connector C-29 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-29 is damaged, repair or
replace the damaged component(s) as described in GROUP
00E, Harness Connector Inspection

P.00E-2

.

Q: Is the wiring harness between front-ECU connector

A-12X (terminal 28) and the ignition switch (ACC) 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 wiper works normally.

INSPECTION PROCEDURE G-2: Windshield Wiper and Washer: The windshield wipers do not work
when the windshield wiper switch is at "INT" or "MIST" position or the windshield washer switch is at
"ON" position. However, the wipers work at low speed when the windshield wiper switch is at "LO" or
"HI."

NOTE: This troubleshooting procedure requires use
of scan tool MB991958 and SWS monitor kit
MB991813. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor

P.54B-15

."

.

AC305231AI

CONNECTOR: C-29

WINDSHIELD
WIPER MOTOR

CIRCUIT
BREAKER

FRONT-ECU

· WINDSHIELD WIPER HI SPEED SWITCH
· WINDSHIELD WIPER INTERMIT SWITCH
· WINDSHIELD WIPER LO SPEED SWITCH
· WINDSHIELD WIPER MIST SWITCH

WIPER SPEED
SWITCHING
RELAY

INPUT SIGNAL

Windshield Wiper Motor Circuit

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-267

TECHNICAL DESCRIPTION (COMMENT)

This system may be at fail-safe mode as the SWS
communication line is defective.
If the system cannot receive any signal from the col-
umn switch (windshield wiper and washer switch)
due to a open circuit in the SWS communication line
or other reasons, the system will enter the fail-safe
mode when the ignition switch is at the "ACC" posi-
tion.

.

TROUBLESHOOTING HINTS

• The wiring harness or connectors may have

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

• The column switch may be defective

• The front-ECU may be defective

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

• MB991813: SWS Monitor Kit

• MB991806: SWS Monitor Cartridge

• MB991812: SWS Monitor Harness (For Column-ECU)

• MB991822: Probe Harness

Была ли эта страница вам полезна?
Да!Нет
4 посетителя считают эту страницу полезной.
Большое спасибо!
Ваше мнение очень важно для нас.

Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.

Текст

Политика конфиденциальности